First, I love my Top Fuels. They hold their own when skiing fast on the groomers and they can rip up the crud and chop on the edges of the trails. I have done well with them in the woods, but I must admit that skidded turns don't come easily to me on the TF. Skiing EC softer bumps are a lot of fun with the Top Fuel, usually
But I want something easier to tighten the radius of my turn without having to skid. In other works, not a 17 or 21 m ski. I like a ski that is more technical as in a carver. The Magnum (Head) is easy to skid, easy to carve. It's softer for the bumps and floats in powder as much as the TF in many ways, even though it's much narrower.
The im78 and 82 and 88 are not the same type of ski. I do understand the benefits of a straight ski and would enjoy that type of ski, but that's not what I want right now. A more dedicated GS ski would be fun too, but that's not the priority at this time (money).
My "coach" keeps bugging me about moving back to a slalom ski. I do like the idea but need versatility. I could describe the ski I am looking for as a TF in a 13 or 12.5 m, wider under foot and solid performance on firm, like the TF. But the Heads supple feel and less demanding characteristics are attractive. With all the "hits, bangs and injuries", I am attracted to the "easier/softer" performance of a SL. I think I could enjoy skiing less fast better on a SL, which would hopefully translate to fewer injuries.
Earlier in the season at Stowe there were a bunch of people skiing SL skis and they did great in those conditions - typical EC conditions.