Hi Steve welcome aboard
Unfortunately I'm unable to offer any advice even though Ive had ALS since June 2000.......The voice banking seems a great Idea, wished I had taken that option but my voice I feel has gone beyond that.....my family can understand me 100% which is the main thing.
Its great you feel you have a slow progression

I'm sure others here will be able to offer advice.
Best wishes Jeannie x