Another timing curve question

Mattax said

With the tool, then collar doesn't need to come out.
It's possible you could turn the perches with pliers - I didn't want to do that.

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I learn something new every day! I never knew those were adjustable in the first place :) I carefully used a pair of small dikes with the sharp edges in the pin slots, and was able to get another 2 degrees out of the loop. Now it's right about 12 before it takes up the load.
So first attempt will be with the limiter plate at 18. Initial 18, idle 30, max 36. Will probably tighten the vac can screw a little too (or disconnect the line for initial test). Thanks again.