Yes, there are a lot of complaints about stuck sparges with a braid.
What is the difference between the folks who use a braid and do not get a stuck sparge and those who get a stuck sparge? I'd venture to guess some of it has to do with crush, but what about the design and wear and tear of the braid.
If you look at MullerBrau's braid, it seems to have very even opening and not be tightly braided shut.
If you look at Denny's braid, it also appears to have nice evenly spaced openings and not be tightly braided shut.
Now if you look at the stainless braid sold here, it is very tightly woven:
I would venture to guess that there's some secret being held by Denny and Greg with regard to stainless braids. Why won't they tell us?
I know Greg has a copper tube to hold his up, but Denny's braid looks... well... rather used.
Not having used a braid, it may be best to buy the looser weave if it can be found.