I have a c.1980 model 41 that's still pretty new to me. It would not reliably cycle with Aquila or CCI standard velocity ammo. I had every manner of malfunction you can think of. I tried some CCI mini-mags, and it did improve the cycling significantly. The factory recoil spring in a model 41 is 7.5 lbs. So I ordered a 6.5 lb. spring from Wolff Springs. It made a tremendous difference, I'd say at least a 90% improvement in cycling reliability. I just ordered a 6 lb. spring, which is the lightest they make, and I plan to try that out and see if I can squeeze a little bit more reliability out of it.
These are target guns, and I don't believe they were intended to shoot the HV stuff. Having said that, a model 41 is a lot more robust than any High Standard pistol, and I think you'd have to shoot a lot of HV .22 in one before you'd see any indications of battering. I've heard good things about the buffers, and with one installed, I see no reason you couldn't shoot HV ammo through a 41.
I guess my point is that you have to first decide which type ammo you want to shoot, and then add or change components until you get good reliability that is not going to beat up your gun.