Help with LC-1 with HP Tuners

I have read through all the posts on the LC-1 and I’m still a little confused on the proper procedure. I need some help making sure everything is setup correctly with my LC-1. I measured the ground offsets and came up with the following at:

0v = .014855721
.5v = .502056881
1v = 1.009648221
4v = 4.025395257
4.5v = 4.532126233
5v = 4.911543651

I don’t think the ground offsets look that bad. My question is what to I need to do with these values?

I would like to change the LC-1 to output 10-20AFR. I’m I correct if I change the LC-1 via the programmer to output the following?

.014855721v = 10AFR
4.911543651v = 20 AFR

What do I need to change in HP Tuners? Do I need to create a new custom defined PID? That is where I’m having problems on what the formula would be or what I’m doing is the correct way.

Thanks