Adjustable rockers adjusters problem?..

YR,
Pressed the wrong key before adding I clearly stated in post # 57 the BHs were for spring CLEARANCE, not to fix geometry.
And speaking of 'geometry', I do not see anywhere that the OP was unhappy with the rocker contact on the valve tip, only that he was having issues finding suitable adjusters for the rockers.

And you have probably got it wrong with your statement 'the shafts are too close to the valve'. If you meant the rockers are too close to the valve, & hence spring contact with the rocker, it is quite possible the spring OD is a tad too large. There will be a limit with some engines as to how large the OD of the spring can be.