Spring Clearance w/ Sharp Rockers

yes they are long valves, with a higher lock groove,but springs are touching at mid point in body of rocker.
retainer clears,they are 1.400 od
valves +.300
inst. ht. 1.850
lift@ret. .610
using 2 .060 shims and a spring cup
tried shimming shaft up but roller tip starts going to edge of valve tip
can't grind them, will weaken
looking for smaller od spring, found a Crower 68382 that is 1.450 with the correct rate