NRG Race Seat Size And Comfort Question

I'm in the market for a race seat for my sim rig I'm building. See a lot of people have NRG bucket seats. Can anyone with experience speak to the sizing and comfort of these seats?

I am 5'11", medium to skinny build at about 175lbs. Is medium or large better for me?

I'm looking at specifically this model ....

https://www.jegs.com/i/NRG+Innovations/415/FRP-330/10002/-1?gclid=Cj0KCQiAvvKBBhCXARIsACTePW8-lHpB8c83bcMIg_KtNhnRwEr0UgjH1jk8V4kzCdWpEZR_hES0oxwaAsZUEALw_wcB