One thing I frequently (consistently?) see during flight reviews is control checks that are very linear…..stick full fwd, then aft while centered, then full left to right, while centered fore and aft.
I was taught by a retired Naval Aviator to “Wipe out the cockpit”, ie: puts the stick to the forward and far right stop, then keeping fwd pressure, cycle it to full left, then while full left, pull stick all the way aft, then while full aft, move it all the way right, then forward.
I was in a 172 with a CFI candidate preparing to do a “spin flight”, that candidate did the “standard” control check. I took the controls to demo wiping out the cockpit. As I moved the yoke from far left and forward to lest and aft, the controls went “clunk” and stopped at about centered fore and aft. Full left aileron, slide yoke fore and aft, and it hit a stop at about centered elevator.
We never started the engine. Plane had a significantly bent tunnel and firewall, from a hard landing or wheelbarrow.
If you want to take this to the next level, with left hand on stick or yoke, point that thumb straight up….it points to the appropriate deflection of the subject surface for visual verification. No thinking required. A certain mechanic I knew rebuilt a customer plane, did a test flight and had mis rigged controls. After getting out of hospital, rebuilt the plane again.