95A, 90A and 85A do “not” fare well in an AMS. 95A works from an X1’s rear spool but for 90A and 85A, feeding from the top is recommended.
Beam interlocking is a bit of a buzz in my personal opinion. Z-Tension and (critically) Peel and z-Impact are only mildly improved. In-layer shear would be improved quite a bit, as would in plane tension. But those are not FDM’s weak spots.
In many cases PETG-TPU bond performance should be sufficient.
The one piece you are still missing is the ability for the X1 to print nulti-spool from an external spool. It is part of the current Beta.
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