Nope! Didn't get an AMS with my P1S cause I generally just use filament en masse rather than using a bunch of different colors. Maybe in the future I'll get it, but I've heard that TPU in the AMS is a nono right now.
I've actually found its hard to find TPU thats too soft! I play around with 3D printing undersuits, and my TPU discoveries have stemmed from that. It all has to do with the shore value, or how flexible the material is rated. The TPU I use is 98A, which I believe is comparable to the material shopping cart wheels are made of! I'm trying to use some in the 82A range to see if I can 3D print some gloves rn
I will say, flexible spackle is easy to find and very useful for sanding TPU. Just absolutely cover your print in the stuff, then sand down till you barely see print lines