Snakeman is only for attack speed which increases a lot, Luffy stays stationary in Snakeman as in everyother G4 form, Kizaru speed blitzing Full Gear 2 Luffy would be crazier
Clearly not, Snake-man is far more faster than Gear two. He should move with FS as soon has he noticed Kizaru launching an Attack.
That's why it's a ridiculously good speed feat.