If you have decent ported heads. You can run 1.25 ratio rockers on a 120 cam which gives you about 497 lift.
I run an engle 120 with cb 1.25 rockers on my 1835cc.

Nice, W120

so the most efficient way I'm taking from the video on how to set your rocker arm geometry to draw an imaginary line from the tip of the valve and the bottom of the cup that the push-rod sits in, and at half lift, that line should be parallel or close to parallel with the head to have the most smooth and efficient running valve train with minimal wear and tear on engine and to get more horsepower? Is it because you want the spring to have less compression because the more you compress the spring, the more leverage and power it's going to take for the cam lobe to push the lifter up causing the pushrod to lift the rocker arm and to compress the spring?

looked like the adjuster was turned in a lot
EZ suggested to have 3 threads over the top of the locking nut
I had a hard time with my valve geometry when I put some EMPI solid shaft rockers on
I think these air cooled VWs are borderline alchemy.

Does it matter if you measure the intake or exhaust valves?

Really Really Like Your Video maybe you'll do a Video on Reading a Degree Wheel an Valve Timing an how to Check valve timing with a Degree Wheel ???????

Holy smokes you have no clue. Deaigned for 1.1 or 1.25 to one. Cam card always shows 1.1 for 1.1/1.25 cams.

Single HD springs or dual.  just curious and also since this was a couple years ago how has it held up with whatever springs you chose.   thanks in advance