I tried SuperVel 147, 124 and 115 using 80, 70 and 60 lock pieces. They all ran fine, with different degrees of soft shooting, 60 being the softest. I was running the 115 and 60 lock piece, but just went up to the 70. I like the feel of 115 and the 70 lock piece best. Feeling is very subjective, but for me, the recoil and dot stability is right on.
I have been using SuperVel for a couple of years now. Prices are more than fair and the ammo is clean and consistent. I use the 147 in my pistol.