I've read the info on the website. It's not just somebody taking credit for and defining what many of us do already: there is some philosophy to it and there are some "rules", to wit:
" It usually works well with lyrical playing in thumb position to use the second finger (or the
first) for every note."
That's my favorite.
I think it seems to be very a methodical way to get to it, rather than plug away for years and catch it as you need it.
We/I should replace "what most of us do" with "what most of us figure out after years of playing".
I like that it is built around Simandl and the existing methods rather than trying to reinvent the wheel.
A few things I think are important to keep in mind:
For non-classical players it is always good to remember you can take a lot more chances with fingering on music you know inside and out, and certain things like holding a position may be a safer bet when you need "turn on dime" like you do often in an improvising ensemble.
On the other hand if a complex idea hits you fully-formed in the moment, you will need the technique and fingering options to carry it out.
Certain extended left hand fingering ideas might hold up for you better arco than with a full on jazz pizzicato - it doesn't mean you shouldn't learn or use them, just listen to you body and try to avoid strain.
I find a low thumb position to be more stable for vigorous pizzicato than either pivots or four finger, but I end up using all three as the music/idea demands it.
Finally, bass guitar technique just doesn't work on double bass. Neither Tom Gale or Dr. Morton are giving bass guitarists get "Get out of jail Free" cards. If the standard three finger left hand technique "isn't comfortable for you" you just need to practice more and be serious about the double bass.