To Kevin's point, Humboldts fall out when you cut them.
Conventionals take extra work. Some face cuts weigh 100+ pounds, some way more.
When you have to break out a large facecut, boring into the center of the facecut,
cutting up and down, allows you to put a wedge in the vertical kerf in the facecut, and break it in half. One piece sliding out leaves the other to be beat out. Easier to swing into a high humboldt that shows looseness and falls out when loose. IME.
Small trees and/ or open lays, not much matters between the two.
Holdings saw properly doesn't matter so much with small saws, either. It's something people can fight to do improperly on the all end.
You can't scale up and do the same with saws or facecuts, IME.
I think you can see where i changed a few degrees from my initial "gunning".
I had 4 stumps in the direct area of the lay, and wanted to hit the soft hill that is 1' above the driveway and utility trench, without getting close to the keeper trees' main roots.
How do you correct when off 3⁰ d? What if you realize you want 5⁰ or 7⁰?
I didn't want to ruin a valuable lots of value turning a straight, beautiful, millable, respectable rings per inch count log into a bunch of low-value firewood by bashing stumps.