I owned a 150 for a while. Nice size and feel but otherthan that (IMO) there wasn't much there. The reason I say this is that the trigger assembly was held in by the 2 trigger guard screws

resulting in the trigger assembly and scope rail "dancing around" making it virtually impossible to keep it sighted in PLUS the barrel was high about mid way out leaving the point end of the arrow not touching the barrel groove. That situation seemed to gradually get worse. Accuracy was marginal as a result, at least that's what I blamed it on. I sold the crossbow to a guy that had much less demanding ex-pectations in the crossbow than I did.