I used these with a new set of AM carbon wheels. I used 25mm gorilla tape as a rim tape then inserted these and made sure they were tightened down with a pair of small pliers.
Next I removed the valve cores to help get the tyres up and the beads seated. The cores were not that tight out the packet, but I Mae sure they went back in nice and tight. Two wheels set up tubeless in 45 mins, all in all,
Work well with deep carbon, enduro rims. Seal is pretty tight. Unfortunately a stone managed to brake one off ?! May e if it was 7075, 7050 would be better.
I was disappointed to find that the valves supplied with my new UST wheels didn't have removable cores. These Superstar valves fit perfectly and when I want to top up my sealant I can easily remove the cores with an adjustable spanner and add some Stan's with a cheapo 50ml syringe.
I found once round was enough on Arch Ex rims, used tube to seat tyre and tape, removed tube, inserted SC valve and the tyre went up first time with a foot pump.