Yeah, those were also recommended to me per discussion with local race engine builder/guru.
Before I purchased my heads I was fortunate enough to be given a guided tour of new and old TD/Barton rocker setups and an explanation of how they've evolved,
they are super nice, but out of my league financially as I needed to spend that few thousand bucks on Sheetmetal for the car
more.

Indy shaft roller are the only one I know of with the interference problem shown here, it's just a certain combination of parts to watch out for,
thread was intended for information.