Howie,
first of all,you should get your center away from the wall closer to you,
just far as your screen allowed.
Thats gives you a deeper room impression and should give you a more precise bass.
Of coarse you have to enter the new distance and run MRC.
For the different heights of the tweeter you can use a stand, but then the center image higher as before.
But that is not so easy as the weight of your center needs a ver stable(screwed) stand.
I dit have my 8k on stand for a different reasons, and dit have heavy duty stands with a electrical height moveable platform(where the speakers are bolted).Then you drive your speakers in the desired height.I have a picture on that if you are interested.
You dont loose bass really, the 8k have enough of them.
Simpler and close to that the solution is the recommandation of george to tilt the heads of the 8k a little, with the addition to tilt also the center a little in the opposite direction(front screws longer or higher).
Then the imgage should be in theory at the same height- on a certain distance. This should be your listening position if that is possible,-means that you are not sitting to close to the speaker -so that the tilt or the angle of the heads get to big.
But anyway everthing will help to get the different heights closer.
Robert
800v3/218/271/8k.2/5k5s

/5kC/DSP3200/Reviver/
TT-ELP/Graham Slee Revelation/Trinnov Altitude 32/OPPO 205
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