If i can overcast low tl shields with higher ones no problem with longer shields / Buffs but making everyone albe to deshield is not good.
if I cant overcast lower tls and you make shields last longer it will be pointless to play a PPU because you cant fight with a Shitbuff for long.
It wont benefit PPUs much because in Fights even with 3 min shields you can make it work
but the Buffs should have a longer duration.
maybe make it so that you can antishield rare Shields only with Rare antishields , would make Apus a bit more useful counter to PPUs and give them an edge over Hybrids again.
It requires skill to reshield in the middle of the fight (Teammates) and makes it a little challenging to play PPU