XRAY - Model racing cars

I just bought one with a hudy micro box for an absolute steal, have just built it and have a couple of questions... firstly, are these little .08s supposed to have much pinch? my one straight out of the box has very very little pinch at all... if my .21 had that little amount of pinch, i'd throw it in the bin.... i know its a small motor, but i would have thought it would have more... also, does everyone elses engine have like 1mm of play (forward/back movement) in the crank with the flywheel and clutch all on properly?... every engine ive seen before that has that much end play ends up with the conrod rubbing the backing plate... Does anyone elses crank shaft touch the rear camber link at max suspension compression? Mine does, and with the 1mm of crank play, it's worse... my clutchbell and spur are aligned straight and happily and shimmed perfectly. I reckon if i changed to the adjustable links it would clear then. Is there anything i should keep an eye out for?

Pich is feeling the compression/tightness of the piston.

And yes, with my engine that is not much but it runs fine !