@Mingo22:
think of it this way.
Ray didn't slash kizaru when he was trying to use mirror teleport. he slash the energy feed of where his body was transfering to. but the slash connected with only a fraction of the light thus a fraction of the damage. vista slashed akainu as he was seperating. thus not a clean cut but a fraction of a cut.
Doesn't change the fact though that Rayleigh cutting Yata no Kagami infected a cut on Kizaru's real body.
akainu though punched a large are of ace fire molecules. thus high percentage of damage. but he also punch through the body hitting all the would be seperating molecules. but if ace had seperates the punch wouldn't have slowed and connected with luffy so there was little choice on aces part at that point.
This example is a whole different matter because if Ace wanted to act as a shield it's fair game to assume that he himself chose to be solid in this situation. Meaning that he got hit didn't happen against his will.
wb when hitting akainu used earthquakes. thus mini explosions. even if he tried to seperate to avoid the punch the controlled explosion is still so massive and in a shock wave pattern that it would have been almost if not pointless to seperate anyways.
How exactly is an earthquake supposed to knock magma out? I rather expect Ambition to have something to do with making the entire damage step possible in the first place.
Anyways I repeat. I'm not saying that the weapon theory is the must go explenation. Just that it seems as a possible option looking at the situations we've had so far.