Hi Mike,
I've been flying for a good few years, and have heard most theories.
For CG I always have, probably incorrectly,used the feel I get as my guide.
Things like nose drop into rolls ,hold for spins ,stability etc.
It always comes out at between 30% and 35% of MAC, typically 32 TO 33.

What do you and B.Hebert regard as 'good' forward for CG.

Brian