Andy,
I run a 15 lbs spring with a tungston rod and an aluminum mag well. Yep - you better hold on to it Grip tape helps. Try a heavier spring and shoot some Bill Drills to see/feel how it cycles and behaves in recoil.
However, I like the feel of it. The G22 seems to cycle faster than the G35 and much faster than the G24.
If you still have the G24, then go shoot some drills and compare the G24 and G22. It's an acquired taste