I’m on tubes, punctures have never been an issue
When they burp the answer is to stick a tube in, so if you have received to carry tubes in the event of failure then what have you really gained?
This was me 7 years ago. Robin Seymour took the piss relentlessly for the the 3 years prior.
Then I got a hardtail with an Alfine and I didn’t realise how it easy it was to remove so I went UST.
It’s not about punctures, that’s a side benefit. It’s all about the lower pressures, increased grip and reduced rolling resistance. Not stupidly lower pressures where the tyre squirms mind.
UST is bombproof and when I did swap over tyres any latex I had added was dry. The newer systems reply on latex as the tyres are not UST thick and need it to seal properly so are messier and finickier (stans/Tubeless ready).
I’ve had 2 UST tyres blow off, pressures were stupidly low (and was on a narrow 19mm rim and I weigh 100kg) and it needed some spit to get them back on again and off I went. The only time I’ve failed, failed was with some american classic where the latex had dried and error had used normal rim tape – they had worked for a year before the gradual air loss made the pressure too low and it burped then needed inflating, but the latex had dried and the normal rim tape wasn’t holding.
More grip and easier to cycle, why wouldn’t you?