I haven't skied the Vicious nor Pistols, but I know a few people who have...
My feeling is that this ski definately is a manageable ski, a lot of people use the pistols for tele. For a reasonably strong alpine skier, the Vicious will NOT be too much.
I am more hesitant about the forward mounting recommendations you get here. Again, not based on experience but more on general knowledge. First the ski is constructed according to the recommended mounting place; this spot is ideal for this ski. This would be were the ski is the narrowest and stiffest. If you mount forward you might end up with a sweet spot that recquires you to ski somewhat in the backseat. Also forward mounting means a little bit easier turn initiation + huck stability, but less floatation in powder. One effect of forward mounting could be that if you "drive" your skis with your toeballs in powder, the tips will dip. Hence you may be forced to a more backseat style in powder, AND WHO WANTS THAT!!?? The gain in terms if turn initiation is not that big.
So my recommendation, WITHOUT KNOWING THIS SKI MYSELF, would be to be careful with the forward mounting. 4 cm is a lot, 3 is quite a bit, 2 you will notice. I wouldn't go more than 2 cm myself. For what it is worth...
All work and no play, ... you know...
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