I've been thinking...and this thought occured to me. Why can't Sanji use DJ to enhance his Skywalk
Like how Shinra uses his flames to fly and go faster
Instead of using dumb RS boosters, he could have DJ boost him to go faster.
Maybe that will be his alternative for when the RS is gone. Plus it will have less stress on his legs...cause he doesnt have to kick ten times to fly. Only to stay stationary in the air.
If he does have this "mode", I want to be called " Devil Walk".