if its in the air, and their PL is already higher than yours while ascending, i reckon, you shoould start getting blown back if you are too close. That might help prevent transkilling. Also i think the PL when transformed shouldnt suddenly just go from 1.75 mil to 3.5 or whatever, i think i should increase over the 10 seconds it takes to transform, in the same way your KI decreases when you are at less than 5 hp. The effect of the blow back etc, should increase as the PL ascends higher than anyone nearby the person transforming.