Very curious as to why? I didn't want to get into this one as I don't play synthetic reeds, but have been playing a ton of soprano with a group I've been in for the last couple of years. Just wondering what the draw for synthetics is, and for soprano in particular.
not that I had any particular trouble adjusting reeds on soprano, but because soprano is 10% of my playing. both I don't care to spend too much time adjusting reeds on it, plus with the sparse time in between playing it, reeds age, change. much simpler to just slap a Legere on it. and to my taste they sound just great on my soprano(s). I've had the same 2 Legeres in my soprano case for 3 or 4 years now.
on tenor, I care more about the subtleties of sound, and I feel the gap from Legere to cane is just a bit wider, so I do spend time adjusting cane reeds, looking for the best sound. although I always carry a Legere in my tenor case too, just in case.