I physically can't slant anymore … at least not as accurate and/or as fast as I need it to be … so the choice was to rework my entire playlist - jumping around the fretboard to find straight bar positions & using different “grips” (which I suck at) to harmonize the melody … or … abandon the harmony and just play the melody up and down a string, preserving the “flow” …
Also, my neurologist (who specializes in Parkinsons) isn’t happy with the progressive lessoning of motor skills in my left hand and he wants me to use that hand as much as possible (in everyday life) ...
So I put my digital “whammy bar” away … and have adopted a technique using a "rolling vibrato" with an EG Smith dobro bar
This certainly isn’t ideal but it's either that or just hang it up for good … so it’s down to “one note” playing with an occasional straight bar strum …
Here is “Ka Makani Ka`ili Aloha”
https://youtu.be/a1GMx9Z3c6I?si=lPjVBiNcO8axngkS