SRM to SRM comparison

I have (2) SRMs on different bikes. One older and one fairly new. Two different head units. One wired, one wireless.

What is the best procedure to validate / compare them to each other ?

static torque test using weights with known masses.

static torque test using weights with known masses

^^^^THIS^^^^^

Pretty simple to do. Should also do it every time you change chainrings as well.