For the OP, CWD apparently purchased Devoucoux so there’s that. I had an independent saddle fitter mention that Voltaires were a bit more difficult to adjust for whatever reason. I think having an independent saddle fitter come out and see if there are some adjustments that could be done might be worthwhile, though would that affect any warranty with the saddle?
What I like about having an independent saddle fitter is IME they check the fit, have you ride, and can make adjustments right then and there, and tweak some more after watching you and horse go until they feel the fit is correct.
for me personally I also like having the flexibility of an adjustable saddle especially for a young or underdeveloped horse since their muscle / back and shoulders can change as they mature and get more muscled up etc. Curiously enough I just had a saddle fitter come out this week to check my “new horse” which I’ve had now for nearly 2 years. Sure enough the gullet had to be swapped out. It’s interesting to see how you think your saddle fits right, but then the fitter does their thing and you see how much better the fit it, What I also like is that there was no discussion of other saddles, tho I was prepared to invest in a new one if necessary.
Find an independent fitter (master saddle fitter) and see what they have to say