ofc Kaido's hybrid form is > dragon form, but Shanks whose skill and ability is based on speed, haki and swordsmanship shouldn't have a problem with hybrid either.
Dragon form still has its perks anyway, since it gives you environmental advantage.
Dragon form is easy target for top tiers, we saw that against Oden and would be no different vs Shanks.
Base form was completely different against Oden and Big Mom, neither could get the upper hand, Shanks probably cant too.
Hybrid form is base form on steroids, nobody can handle it in 1vs1, that's why "if it's 1vs1, always bet on Kaido"...
Dragon form is only useful against many opponents who cant really deal with its size and cant deal much dmg to it, like Scabbards...
Luffy’s doing the blocking though
Sure he is.