I have a Shoebox 4500, from my paintball days. Even with it quirks I still love this thing. I’m currently in search of the part number for the electronic Pressure switch. To retro fit unto my box. The original cutoff spring broke and is no where to be found. Can you F10 owners please provide the make and part number from you shoebox? I found a list online that states its a GEMS unit but I’m not sure if it’s accurate and did not provide part numbers. Thanks