Correct pushrod preload?

I would lock the hyd cup .020" below the snap ring (this is a good preload amt & this duplicaes the actual running setting plus SB pushrods are at a severe angle so even more I would want to duplicate the actual conditions). I'd want 1&1/2 threads below the rocker (MP has a 9/32" dimention from the rocker to the ball tip. With all those settings in place then adj the checking pushrod to get the right length. In addition I would also first check the wipe pattern and the end view & see how close the rocker arm/pushrod is to a right angle at 60% of cam lift (iirc it's 60% for a SB/50% for a BB you might check Hughes engines site for confirmation). coil bind/retainer to seal/rocker to retainer clearances/piston to valve: "clearances"