i had the mmc ultra and loved it , i still have a hornet , custom stock , carbine barrel with a standard air cylinder but JB fettled i believe and find it superb . All horses for courses though , recently sold a r10 air tech tuned and hand on heart i did that because the hornet is good enough for me , i only hunt so don't need a huge shot count , still getting 80+ with the hornet though and its soooo accurate
rgds
craig