Nevermind guys.
Forget my post.
I went full retard.
Edit: Well might as well leave it there. Found a glitch where basically everyone that manages to quickly rapid cancel something into overdrive, the player WILL NOT lose his 50 heat.
Though I thought it would leave you with a non canceled OD, it seems it was not the case. It's more like the game disregards the RC and basically gets overwritten.
I don't know if this could prove beneficial though. I dunno, like, if there's a certain pressure that you're making and you RC but don't feel like totally wasting meter, then you rapid into OD or something.
Will see if it could be any good against Yukikaze.