Out of the 2 reflex rails I own the only problem I've had is a small leak in one of them from using a low pressure tank.
That being said, yours could work perfectly on low pressure, just like one of mine.
Other than that they sometimes don't like really brittle paint
If you wear arm pads and a tank top while playing woodsball, I'm judging you.
You can spend $4,000 on a tournament and play 10 30 minute games, or spend $200 on a scenario and play 48 hours non stop.