Does the SBE come with shims Z, A, B, C,? I don't know if the build of a SBE and a Ultralight is similar but you may have helped me with my problem. My UL came out of the box with the "B" shims installed and I couldn't hit with it worth a flip so I dropped to the "C" shims and I still can't hit consistently with it, maybe I went the wrong way with the shim change, I finally just put the gun up and went back to a gun that I could kill a grouse with. Tomorrow I may drag it back out and go to extreme the other direction by installing the "Z" shims and start adjusting from there.