Spring Pressures. Solid roller lifter on a hyd roller cam.

The lifters are Crane 69515-16 solids to replace the Hughes HUG 5321 hyd retro rollers. I've got both lifters here but my hand mikes are at the shop. Can't fully see to measure the Hughes wheel and can't find wheel dia info through my searches. What would wheel diameter effect...rotational wheel speed, possible oil band exposure at base circle...? Edit: Got a checker push rod set on the way.