Great question.
I was just asking about this at my local track last weekend.
Would like a in depth answer from somebody that has a good charger
on what to look for in numbers and what equipment we need to check the packs.
My 106 will show ir too...and obviously the lower the better.That being said,I noticed that a turbo 35 will have a few more options for charging/discharging/ir average.
What are good overall numbers to look for?
Should ir be checked with a pack hot out of the car (or charger)?
With non sponsored racers not able to just "replace" a questionable pack, knowing what to look for with ir/voltage averages ect. can be a competitive advantage at the track
I think it's a good subjet and hope one of the pro level guys can give some input.