gallo reference 3.0 positioning?

Hey folks, need some advice from those who would know. I have been thinking these speakers a bit muffled and dull. Then i began to change the tilt back angle. . . instead of lifting the front end with the spikes for more tilt back i have them tilted back only slightly and they seem to sound better. Trying to figure out how to point the tweeter correctly at the listening position and if this is truly making the improvement I "think" i am hearing. Help if you can, thanks