I'm no pro gamer, but I game pretty frequently. I like scissor-switches for FPS because of the low key travel and ease of hitting multiple keys (Control, alt, shift, space, wasd) when you're off home row. For more hotkey-based games (StarCraft), I prefer tactility (currently on Black Alps). I've tried the Deck for FPS before, and it's no better than the Black Alps in terms of gaming performance.
I still plan to get the Blue Cherry Filco. I'll just have to hope it doesn't bother me too much.