doesn't fill anything past 3000psi? That's garbage. Why are you looking at 104's?
There are a number of shops in my area that won’t fill past 3000. They say their compressor won’t go past 3000. It’s probably the don’t want to push their compressors past 3000. I refer to these as “warm water shops.” They’re really not interested in filling non-AL80s. Getting HP fills can be a challenge.