Impact had the RM100 on their stand at the Midland yesterday. (and today I suppose)
Didn't handle it but its big-ish and probably weighty.
As suggested, its very much like an Evolution with a longer mod. Same EVO trigger. The "blacking" looks good but not quite in the same league as early Theo's in my opinion.
Stocks nice (RH only) with "skip" checkering and a rosewood/spacer on the grip. Cant tell if its a Custom Stock job but very well could be. Subtle differences obvious to the previous Theoben Evo CS stocks. Copywrite issues ?
Pricey ?......yes probably but the proof will be in the pudding !