well, it didn’t take long to return to a more classical hand positioning for touch typing (versus the flattened fingering I was experimenting with). With that, I have returned to the original Colemak Shift-DH layout after playing with the Shift-mod CV keymap swap—that it didn’t appear to impact typing negatively was expected but finger memory of some bigrams is much happier with the return..
`~ = 1 2 3 4 5 6 7 8 9 0 [ ]
Tab - Q W F P B J L U Y ; ' Del
Esc / A R S T G M N E I O Enter
\ Shift X C D V Z K H , . Shift
Ctrl Win Alt Space Backspace Fn Pn Ctrl