Any idea? I found two booster options for P3 4K on the market. One is FPVLR Sunhans boosters with battery pack and amps I think that retails for $299 on Amazon sold by REXUAV and another one is Itelite / DBS mod antenna kit which retails at around $110, sold by DBSMODS. If any of you tested these on P3 4k please let me know the results. Both of them will void warranty so if I do it got to do it with the best one. Thanks!