I believe most compressors, if working properly, have an unloading valve which drains the pressure off the cylinders after the compressor stops. So if this is present and working correctly, you can hear it piss off a bit of pressure for a few seconds after stopping. Thus, I think the motor has a chance to start the compressor turning without drawing locked rotor current.
As for anchoring the machine, I have an equivalent size Haas (a VF3) just sitting on its pads on top of fir 2x6's on the floor. I placed the wood parallel with the Y axis. This gets the machine up high enough that I can get my stacker forklift under the front of the machine, to load heavy parts and heavy indexers into the machine. I suspected I did not have a massively thick floor, so I wanted to spread the weight quite wide. Yes, the machine is heavy enough to sink into the wood a little bit. In the dry climate here, I think I can get away with this. I've not had to relevel the machine in 3 years.