Sorry for the dumb question.
Of course you know the difference between the jib sheet and the jib halyard. I didn't mean to be insulting; I was overcome with righteous indignation. (The devil made me do it.) I just couldn't believe that Hunter would set up a boat that way; but, after reading several reviews of the 340 in which this problem was mentioned, I have come to the conclusion that they did. I don't think that it is wise to run a jib sheet through a sheet stopper because they are too likely to jam or snag when they are released. When you tack it is important that the the sheet run smoothy through the fair leads or you will have trouble completing your tack. This can be very dangerous if you are in traffic or close to shore (or another obstruction) and you cannot complete the tack because the head sail is effectively cleated to windward. I doubt that the headsail is so easy to trim that it can be done without a winch, but if so, a cam cleat would be preferable to the sheet stopper. Jib sheets foul on hatch covers, on the fair leads, on the turnblocks, or the whisker pole; or, they are stopped by a "foot" or "butt" cleat. Most of these situations are quickly fixed with a tug on the line. Removing a shredded line from the sheet stopper can take enough time to cause a problem. I think the best solution is adding winches. Sorry if I got carried away. Ron