Hi all currently tinkering with my classic army scarab. The gun fires perfectly for around 5 shots sometimes more, FPS is 0.96/0.99j but every now and then I get a low baller at around 0.35j. any ideas what could cause this? Gun has V2 GB, 13:1 gears, high torque motor, Perun basic MOSFET . Could it be a timing issue with tappet plate? There is no pattern to when the low joule shot will happen, when it does the next shots are fine