Demo Checking programs

Hey guys, I'm starting off a new community for kreedz jumping and I was wondering if there is any profound demochecking system, because Demolyser and Demochecker only checks the simple demo settings like sv_gravity, sv_airaccelerate and so on.. I heard those demochecking programs are private and not given in public. Well if that's true, could you give me any tips to see if the jumper cheated in any way? Thanks in advance :)