simple solution, go and practice stalling yourselves... (when was the last time you did that truthfully?) and try it a differing weights, load factors, CoG positions, and come back and tell us what you find..
Regularly!
A mid-CG position of about 24.5% MAC is the first configuration. For reference, cruise at 140 kts, the stick position was 290 mm aft of the instrument panel. At full throttle the stall stick position was 320 mm aft of the instrument panel. At idle it was 360 mm.
For the next flight CG now at about 27.5% MAC. Stick position at 140 kts still at about 290 mm. Stall stick position is about 295 mm at idle.
(Incidentally, in an inverted stall the stick position was 215 mm at idle.)
For one particular Lancair 360 there was a difference in stick position at the stall of about 50 mm between 10 deg flap and 30 deg flap. Not a lot of difference at all in stick position between stall and a much higher speed at the same flap setting.
Try a S&L power off stall in a Decathlon then do a loop and see that the stall stick position is much further aft with full throttle at double that stall speed with more than 4 G. As Propjet88 says, it is a different matter in a more rigid airframe and control system such as the Pitts.