I finally understand why I've been stuck!
Pushing too hard was the only repeatable way I could get distortion on notes. Fry scream has never been too hard. But real, on-demand, comfy distortion? Never. Cranking up my "gain knob" tended to just produce even cleaner, tighter tones (heavier mass) rather than the burbly grit I'm looking for.
I took a break from learning distortion when I started making myself pass out in the middle of the best compressed grungy tones ~2nd passagio (G up to C#) even though my voice wasn't feeling any pain. Coming back into it in the past few months, trying to learn completely different coordination, I realize how seriously challenging it is for me to isolate adduction (heavier mass) from compression (more respiration pressure + constriction up top). This is why only "pushing" works: a huge force of wind overcoming heavy mass distorts - but too forcefully. If I could lighten up my mass while maintaining compression, then distortion would be a breeze!
What's helped me learn differently this time:
- Trying to always keep a little wind in the note - I visualize adding some of the 'h' sound (as in 'hot') to things, which took me a long time to grasp but is working out nicely. Doing it without a note sounds a bit like a constant wheeze. This seems to be part of the distortion "gain knob".
- Using cry tilt more - Thanks to copying Draven's default singing mode, I'm currently obsessed with isolating cry exactly. Over-crying in silence with no other efforts (while doing chores, etc.) to exercise that strength and coordination, regardless of what my face decides to do.
- More TA/CT strength-building - distorting positions are usually unstable, and more strength makes stability naturally easier. At constant pitches across my range, I do the "superhero": mmm-ee-yeh-yah-yoh-oo (my souped-up version of Maestro Kyle's "hero") with lots of quack at the y's. Doing these slowly in the tenor range feels 100% like lifting weights and *works* like gangbusters!
The position of "light-mass cry-tilt with some extra 'h' wind" is the comfiest, most easily-controlled position, and tasty distortion at will is *much* easier, but maintaining that position feels like balancing on a knife's edge. The more I do the 3 things above, the more natural the balance becomes.
Cheers, y'all!