I would leave the level trims where Audyssey set them. Audyssey sees the room acoustically and it sets trims based on such, and by the sensitivity of the speakers. What that means is if you deviate from Audysseys levels is you’ll likely have an unbalanced soundfield, and pans, and imaging will be off. Readjusting the sub distance can sometimes help with impulse response and XO dips. Like shady has advised, you(everyone) should have at the very least a decent spl meter to verify/tweak settings.