May you know or dont know but pip is one of the worst healers in game ( looking at heal ability, not everything )
I thing i know how to change it
Pip instead of 1 potion would have more potions ( 5-8 ) regenerating every 4-5 seconds and healing 500-750 hp with smaller blast.
I thing it could make pip even stronger than jenos.
Your idea is almost identical to Combat Medic