I had the same prob. w/ my ca33e yesterday.Turns out that when I pulled my hop-up apart for shits & giggles, I lost my hop buck(?) and had the same prob. when I reassembled it.Made one from a wire insulation cover cut to correct size, then cut my areosol nib srayer to size and slipped it into the wire casing. REplaced back into the hop-up and problem solved.To see a good diagram of a hop-up, go to
WWW.Filipinoairsoft.com to tech support @ high-end A.E.G. / how to rebuild hop-up. Hope this helps.