Just to throw in my two cents, the porsche elephant foot adjusters are a great mod. Easier to set right, wear better, no pitting of the valve stem, no squared off adjuster ball. Much quieter, The oil in the foot acts kinda like a hydralic lifter.
A bit more work to install, need to have rocker box off, take out rockers, mod and reinstall.
Best done while engines apart for top end work.
The adjusters the OP listed are a very easy install so are a good option for replacement while engine is together.
Leo