Blackthorne, can't be the bucking because i replaced it with a no-name brand that i had around.
and also, i have a failiure to feed, as in the bb's are being stuck up bastards and not wanting to be shot out of the gun
i managed to chrono the gun and the compression is perfect, and the entire gearbox is brand new (systema) i just dumped the box in along with the new hop unit.
as i said before, i'll modify the hop unit i have (the old one not the Prometheus) to fit this box.
I'm wondering if the internal dimensions of the DBOYS body are slightly out meaning it needs a taller feed tube on the HOP unit, because the angle of attack that i'm getting the best results supports this hypothesis to a large extent.
thanks for all the responses by the way, everything is appreciated!