Congrats Kevin. You are ready to rock now.
Nice find on the tank setup! Nice compressor too, but it is not an oil-less compressor. I have an Ingersoll Rand compressor, but it too is not oil-less. I would be buying a small oil-less compressor if I bought a Shoebox. No chance of any oil getting into the tank or gun with that.
They do make high quality water/ oil separators for shop compressors. Paint shops use them to keep fish eyes etc from messing up the paint job.
just curious, is your Regal .22 or .177? i have a .22, and looking at a .177.
DR just a comment. I shoot a Regal XL. I was using it in Field Target. I needed a few more shots than I got when filling to 220 bar. so I would try creeping just above that pressure. What I found is I would shoot low until my pressure got down to the 220 then my point of aim would return to normal. In short the hammer has to overcome the air pressure changing the amount of open and changing the dwell time. There is a circle on your rifle receiver telling the optimum pressure. It is the PSI to use.If you knew all of this sorry. Just thought I would share