I've been thinking about this for some time but, Advanced COA the way Oda has explained it doesn't make sense or at least lacks proper explanation.
I've seen people make the assumption that Advanced Haki is going to significantly boost Luffy's Attack Power yet, such a proposition makes very little sense from what we know from Advanced Haki.
For one starting with the barrier form of this Haki, seemingly no physical force goes into the attacks. The thing that does all the damage and all the defending is your pure Haki. This means that there should be no advantage from the use of say swinging your arm harder or blowing air into your muscles. Even if we assume that Luffy's Haki capacity increased from his training, then advanced haki shouldn't have a different damage output than simply using that Haki reserve with hardening instead of flowing it out. In fact, you can argue that since Hardening actually physically touches the target of attack, that any added physical force behind the attack would be added to the Haki itself making for a stronger attack than attack with just pure Haki.
As a result of this, It doesn't make sense that barrier Haki is more "powerful" than simply using hardening unless there is something I'm missing from Oda's explanation of the concept. There is nothing indicating that making the Haki flow automatically makes it stronger than when using it to hardening or imbue a body part or object.
So, I don't think that the attack power of Boundman is going to magically increase. The only difference between Pre Adv Haki Luffy and current Luffy is that Luffy now has an ability which bypasses physical durability. I'd like to think that Hardening Boundman would still possess more raw power overall but, that raw power is not enough to damage Kaido. This form of Haki is for the sake of consistency for ones attack. It adds a consistent way to deal damage to your opponent even if you are physically weaker than they are through bypassing their durability. Additionally this leads me to think that this new Haki is not some one shot mechanism or attack. I am willing to bet that this Haki wouldn't one shot anyone that is Commander Level or even Vet Level but, when enough of those attacks can land, the user doesn't have to worry about matching their opponent in power because they know that everytime they connect with an attack, they will hurt the opponent.
To conclude, I don't think advanced barrier Haki is any stronger than hardening in fact, we can credibly argue through the explanations oda has given, that it should be weaker overall but, its use is likely allowing its users to be able to strike at distance against opponents that have attacks or bodies that shouldn't be made contact with. And lastly, the penetration form of Haki flow is not a means of increasing overall Attack Power but offers consistency in regards to being able to produce a consistent damage output regardless of ones or the opponents physical power.
I've seen people make the assumption that Advanced Haki is going to significantly boost Luffy's Attack Power yet, such a proposition makes very little sense from what we know from Advanced Haki.
For one starting with the barrier form of this Haki, seemingly no physical force goes into the attacks. The thing that does all the damage and all the defending is your pure Haki. This means that there should be no advantage from the use of say swinging your arm harder or blowing air into your muscles. Even if we assume that Luffy's Haki capacity increased from his training, then advanced haki shouldn't have a different damage output than simply using that Haki reserve with hardening instead of flowing it out. In fact, you can argue that since Hardening actually physically touches the target of attack, that any added physical force behind the attack would be added to the Haki itself making for a stronger attack than attack with just pure Haki.
As a result of this, It doesn't make sense that barrier Haki is more "powerful" than simply using hardening unless there is something I'm missing from Oda's explanation of the concept. There is nothing indicating that making the Haki flow automatically makes it stronger than when using it to hardening or imbue a body part or object.
So, I don't think that the attack power of Boundman is going to magically increase. The only difference between Pre Adv Haki Luffy and current Luffy is that Luffy now has an ability which bypasses physical durability. I'd like to think that Hardening Boundman would still possess more raw power overall but, that raw power is not enough to damage Kaido. This form of Haki is for the sake of consistency for ones attack. It adds a consistent way to deal damage to your opponent even if you are physically weaker than they are through bypassing their durability. Additionally this leads me to think that this new Haki is not some one shot mechanism or attack. I am willing to bet that this Haki wouldn't one shot anyone that is Commander Level or even Vet Level but, when enough of those attacks can land, the user doesn't have to worry about matching their opponent in power because they know that everytime they connect with an attack, they will hurt the opponent.
To conclude, I don't think advanced barrier Haki is any stronger than hardening in fact, we can credibly argue through the explanations oda has given, that it should be weaker overall but, its use is likely allowing its users to be able to strike at distance against opponents that have attacks or bodies that shouldn't be made contact with. And lastly, the penetration form of Haki flow is not a means of increasing overall Attack Power but offers consistency in regards to being able to produce a consistent damage output regardless of ones or the opponents physical power.
