my 1377 converted to 1322 with(UPDATE CHRONY RESAULTS IN)

well after the whole ordeal with jim ayers aka j3magnum fucking me around with this whole gun( http://talonairgun.com/forum/viewtopic.php?t=10123 { http://talonairgun.com/forum/viewtopic.php?t=10162 }) incase u didnt see the threads on that

i finally got her done i dry fired it a few times with and with out the tko shroud it is sweet with the tko id say 85% quieter than with it off
although when i pump it it hisses until it hits 5 pumps then it stops
is this normal will it go away with some oiling and breakin time?
i pumped to 10 pumps and let her sit for a few hrs and it was still pressureized.
now for specs
it was a new 1377 i put on a steel breech and added a .22 cal 18″ barrel
a tko trigger kit, i polished the sear up in the gun
i modded the valve for more volume. i will change springs once i chrony it and see what is is shooting like
the valve and piston are flatfaced now
i believe i have around .001″ of headspace between the valve and piston after some close measurements
the scope rings are weaver brand and the scope is a 3-9 x 50 tasco riflescope
and the barrel band is courtesy YellowNinja
thanks Y it works nice
well heres the pic and it will be camoed monday or tuesday