Curious what kind of air compressor presta chuck you have coming from Amazon. I need one and reading reviews it is hard to tell which one might be decent quality, other than going all in on a Park tool for $134.
Also - what is your plan on the MXP PDX combo? PDX in back, MXP in front or vice versa?
PDX front. Guy on team said he liked that as he felt the front end held better counter steering on really hard turns.
I bought the Cyclospirit air compressor chuck. It has a standard bike tire chuck on the one end on a hose. Other end is the quick connect to connect to air compressor hose end. In between is a thumb trigger.
I will set the compressor outlet to like 60psi, connect this chuck, then press the thumb grip. Instant full 60psi airflow. I've got a pretty large "hotdog" air compressor.
When I try it will report results.
As for the tubeless, I've been running what I have now that way fine. But am adding a liner. The liner they claim is designed to keep the bead in place better when going low low pressure.
I trust tubulars, just don't own tubs as wheels.