Two years ago I raced CX on tubeless MXPs. I wanted to get PDX's because they are about the most popular CX tire here, but my go to shops were out of stock, so I went with MXPs. Tubeless was great compared to being on clinchers the year before (where I ran higher pressure). I'm not interested in dealing with gluing tires any more, so its tubeless for me for CX. This year, my son is on tubeless as well, so I bought a set of PDX tires, and was going to give him my MXPs, but maybe I'll put us both on MXP/PDX combos. In the end, I'm sure either would be a good setup. I also need to get my compressor set up with a presta chuck, so I'm looking forward to your review of the cyclospirit BTS.
Thanks.