Small sample size but last time I rode MTB in the alps with mates, the only people who had issues with tyres burping were the Schwalbe tubeless people. That said, it wasn't JRA, it was usually cornering quite quickly.
MTB pressures and directional forces are a different game i reckon. its not really my area of expertise, and I've been running 1.5kg Dirt Wizards on the hardtail for some reason, so can't pass judgement on the schwalbe situation there!
Small sample size but last time I rode MTB in the alps with mates, the only people who had issues with tyres burping were the Schwalbe tubeless people. That said, it wasn't JRA, it was usually cornering quite quickly.