VC3.1 400 Enclosed - Ringing only on X after Input Shaper?

Printer:
New build 3.1 400 Enclosed
Toolhead Beta v2 - Vertical Toolboard
All parts from Ratrig

I'm still getting what I would consider significant ringing after running Input Shaper on my 3.1 (no panels on yet while diagnosing issues). On Y there is no ringing. I'm willing to try anything at this point for a solution. I have done a partial dissassembly (removing A/B motor mounts, pulling off Y linear rails) and reassembly, swapped A/B belts with eachother.

While I had the belts off, I did move the tool head around by hand nothing felt as if it was binding.

Yes, by X I mean the faces of any print that run from FWD to AFT on the machine - effectively the left and right faces of the print.
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