Cut to the chase. I have taken appart the LPR, inline, bolt and rammer, greased lubed and replaced o-rings where needed, cleaned the eyes and replaced the rubber det's the BSS system is working, it detects when balls are in and out of the breach, I was trying to test fire the gun. So i turned off the ball sensor following the manual instructions, but the gun wouldnt fire. Not sure what to do. When i turn the gun on i get 'CUST' written on the left, a battery life indicator and i can edit the timer and the display. I cannot find where i edit the trigger info and OPTO stuff. I adjusted the trigger screws to make sure the trigger was able to activate both the micro switch and the OPTO on the board. I think my issue may be with the settings of the board perhaps a function is disabled or something? Either way i cannot seem to find a way to edit the advanced settings in the later part of the manual. help appreciated.