Yep, especially on the big three, Benny, Hunter, and cata.
Funny thing is, Hunter went to the arch and no back stay several years ago, one advantage of the no back stay was the ability to carry huge roach in the mainsail, well no a lot of Hunters I see have also gone in mast which defeats the purpose of huge roach because you can't have any roach with in mast furling.
as far as jambing, not too many problems on my end.
My opinion is most jambs are caused by operator error.
Courtney is My Hero
If a man is to be obsessed by something, I suppose a boat is as good as anything, perhaps a bit better than most - E.B. White