^^Yes, I'm familiar with concept. Had 2 bikes that had that style valvetrain. Fortunately never actually had to pull 'em to adjust because I got rid of the bikes before it was time. One bike I did have to adjust on had rocker arms that slid out of the way to get the shim out. That was a mid 90's bike with a zx11 based engine.
And I suspect (hypothesize) that when it was time - the next owner just had to measure, but never had to make adjustments, because they measured in spec.
I've owned a 1996 GSX-R 750 that I rode to about 130K KMs (odometer stopped at 99,999 - no rollover). Had to track the remainder with a GPS.
Measured the valves a few times - never needed any adjustment, always within spec.
I remember it like it was yesterday - but it was Aug 2009. Was riding with my buddies on the Cherohala Skyway near the NC/TN boarder. As I approached 99,999, getting ready for the Kodak moment, a fellow rider (stranger) crashed right in front of me at 99,995. He was ok, as he was appropriately geared up, and landed in the bushes with a bruised ego.

Once it got to 99,999, it simply stopped counting (even trip1 and trip2 stopped counting). I expected a rollover.
Guess it wasn't expected to go that far!
Fortunately, I had a (good for the time) GPS, Garmin 2710, which logged milage for me after 99,999
I miss those days!
Sorry for the off topic nostalgia . I don't do that often.