I have a FX dreamtac compact .25 cal. reg is set at 150 and spiraling every pellet from jsb 25.39 aa 25.4 jsb 33.95. turned reg down to 130 still same, turn back up to 150 and chrony reading for one 16 shot mag started out in mid 700s dropped to 500s then shot up over 1000 for a couple rounds then in the 800s and ended in the 400s with tank pressure between 250 and 200 bar. this is not what i expect from high end guns!!! my Hatsan Bullboss shoots alot better than this, any advise would be greatly appreciated thank you Bret