Color me confused but you said that you typically ride 22.5-23.0 at 75ft.
Now you are saying that you increased the speed to 22.7 and that the increase was really apparent and helps with your spins.
If you went to 22.7 from 22.5, I doubt you could feel a difference however if you were riding at 23 before, you decreased your speed.
Something just isn't making sense. (No, I am not digging on you, just trying to make sense out of your post).