Probe piston ring Gap with Nitrous (power adder)

I have a set of probe pistons I am looking at and would be using Hastings plasma moly rings. This is their info on their site:

Top Ring: Multiply the bore size by .004 (ex. 4.000 x 0.004 = 0.016)
Second Ring: Add .003" to top ring calculation (ex. (4.000 x 0.004) + 0.003 = 0.019)
For power adders, increase gap by 0.005"



If I have 4.040 bore size and multiply 4.040 x .004= I get .01616, so I would add .005 and get = .02116 correct? For a gap of .021 or .022?

Then for the second ring it says add .003 to the top ring so that would be .024 or .025?

Thanks