Just to let you know, "BAXS" is a fancy marketing term that Crosman/Cybergun or whatever uses for "hop up". Anyways, sounds like the nub on the hop up is somehow messed up. Maybe you need to take it down and take out the nub so that it can't depress the bucking to create backspin?
From what I understand it's a KWC OEM. I don't know what system its based off of or if it's their own proprietary system but it should be easy enough to take it down and take out the hop up nub or whatever gives the BB's backspin.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE