v1.5 MX: Nylon type?

[iamvoidcoder]

Hi. I tried placing an order for latest v1.5 /Production/MX Stem + MX Size variant with JLCPCB. Picked the newly added JLC "PA12S-HP" Nylon material which has super nice almost PBT like fine grain. Super nice touch feel but the accuracy is seriously off. Esp the stem shaft is problematic. Both the stem shaft walls are uneven and thicker than they should be (not fitting something like TTC Frozen Silent V2 switches due to extra wall around the stem shaft) and the shaft inner MX + shaped slot is uneven too (can't plug in any MX switch stems really, tried quite a few different MX switch types).

Has anyone tried printing these in MJF / Nylon with JLC? If worked OK, can you please share which exactly material you picked when placing the order? Thanks