Quote from: throwaway123456 on October 10, 2023, 12:36:35 AMyes, I just moved phone vertically along thigh until I saw the highest "tesla" reading, then marked that point and it was correct, you can confirm this after initial surgery by comparing phone magnetometer reading with the surgeons mark .
FYI I could tell ERC was in right spot during most of my later lengthening (i.e after initial 1cm when my thigh began to really stretch) as I could literally feel tension increasing each ERC session as Rod lengthened.
thanks for sharing experience !