As far as recoil goes, a while back i tried pretty much anything 24g I could get my hands on, and I never found any of these with less recoil than my 28g CompX fiber. I tried (again) TT1s 24g over the week-end and sure enough, still kickier than the old compx.
So there is more to recoil than just the amount of lead, the powder they pack it is very likely a more important factor.
That and also wether your gun is backbored/overbored, length of the forcing cones, which chokes you use and so on and so forth. fun!