Height Vs Voltage Hypertherm45

Greetings,
Brand new to plasma cutting but I have set up a Precision Plasma Table with a Powermax45 cutter with a mechanical torch. I'm trying to tune this thing in and getting decent results. The problem is that the recommended cutting height for a shielded torch is .060in but the recommended voltage is about 121V for .125 in aluminum. I am confident that the program sets the height correctly but I want to use Torch Height Control for a better cut. I'm using a Proma (horrors! I know!) THC and I see it reads something like 130V at the program's .060 inches. Assuming the Proma is correct that the voltage is actually 130V, which should I go with? Do I adjust the Proma to the voltage the height would indicate or do I set the Proma to the recommended 121V? I guess I can also measure the voltage with a Volt Meter and confirm the Proma is correct, but all this is dynamic and the cutter has to be in motion so it is a real pain? Anyone have any insight they can share? ( Jim Colt if you are out there, I'm extrapolating the 121V from the chart in the manual... I would never demean Hypertherm)

Thanks in advance

Steve