It's different to me, anyway. I have Comp Pro-Magnum rockers and AFR heads. I know you are supposed to spin the pushrod while tightening the adjuster, until resistance is felt, then you turn the adjuster the additional prescribed amount. But, I've never heard anybody mention:
I can't get my fingers in there to spin the pushrods!
My hands are average size (size L gloves), it's not my parent's fault that my fingers don't fit. What do I do? Can I go by the fell of the adjuster nut? I never had this problem with a SB Chevy.

 

I just went by the feel of the adjuster nut.

 

I did it the correct way.... with a dial indicator...

not sure if it was the correct way or not, but it was the only way I could think up that would allow accurate measurement..

 

dial indicator