I had to go down to 77% power to not exceed the 26mA that RECI says is needed to reach 10,000 hours.

Here are the DXF files and the source for the 30 mA meter: Current Meter for DC C02 LASER Tube by rsilvers - Thingiverse

Before:

10% 4.5 mA
20% 7.2 mA
30% 6.5 mA
40% 10 mA
50% 15 mA
60% 20 mA
70% 23.5 mA
80% 26.5 mA
90% 29 mA
98% ~32 mA

After:

I adjusted 98% power to be 28 mA.