I didn't read the instructions :)
Thanks.
Have a trip coming up and will be a couple weeks before another range trip.
Think I will set up 3 bolts.
The internal shimmed Commander spring, no external shim,
A stock spring, 38case/Ceramic ball and external shim,
The counted and cut Tubb's spring, ceramic ball and external shim.
I will try and measure preload to lift pin off the Notch, and at fired position of each bolt.

Will try with 41 primers.