I don't think it's just about reaching a BMI, or x% of starting weight. If it was then by now, a more formulaic way of approaching this problem would be developing. Obviously, that could be the case for Prof Taylor but we don't know it yet, but that is purely speculation on my part. The big problem is we have no idea at what point we tipped over the PFT and where we might tip back over it into remission/resolution or whatever you want to call it. Clearly, nor do we know if it is the same point of fat carrying that would tip anyone back into a diabetic state from a remission. All anyone can do is give it their best shot and take their weight to a place they feel comfortable - whether that be defined by weight, BMI, appearance, feedback from family/physicians or whatever.
I stick with my belief that whilst there are a variety of ways to skin this metaphoric cat, unfortunately some people will never achieve that - by virtue of pancreatic damage, un-sustainability, other health considerations of a million and one other factors.
Apart from one, diagnostic HbA1c, all of my HbA1cs have been well into the non-diabetic ranges. I have no idea at what point of my journey to a skinny BMI of 18.4 I crossed my personal threshold. If it was non-diabetic fasting finger-prick tests, it would have been within a month of my diagnosis. If it was based on the non-diabetic HbA1c, it would have been the first available 3 after that. But, for me, I could not risk resting there. I felt I wanted to replicate my bloods and trim right back, as I saw that as a fundamental aid to keeping my blood scores down.
As I have said many times. I have not followed the ND. I admire those who do. Had I discovered it within my early weeks post-diagnosis, I might have given it a go, but I don't believe it is the silver bullet solution. And to reiterate, I don't believe there is a solution for everyone. But, I do know I have been very fortunate and don't intend to stress my body as I obviously did before.