Personally, I've not seen him cheat but then I've only watched him at a handful of events. I've watched him walk when hit before when he 'could' have lost it.
I'd guess his rep is worse than it deserves to be and you can bet there are worse cheats amongst his peers, but when you become the biggest name in the sport then everything you do comes under a microscope...It's Oli Lang's turn now - there have been threads on here and elsewhere about his 'cheating'. If you become the latest thing Rich, it'll be your turn...
Aftershock as a whole has a rep that is as bad, if not worse, than Lasoya's, but then many people will tell you that's unjustified too.
So come on then - who has seen Lasoya cheat? Tell all...