On the west coast we have 1/2, 3/4. and day boats where you bring your own tank. And you get hot fills. But boats pump to 3000psi without a problem and they cool to around 2700 to 2800. still 15% over fill! If you own your own compressor you would know how hard it is on them. That is why it takes so long for that last 500psi! You must be getting a slow fill or it is in a cold climate! Live aboards usually have 80qft @ 3000 and they consider a good fill to be 2800psi!