A rinse bar is something that produces a band of water above the top bristles on a brush. Jets lined up together in the middle of a brush are simply jets grouped together, it's not a true rinse bar is it?
They are $hit I used one for a hour before ringing up and complaining, the jets were all over the shop and the bar itself catches on sills,frames etc
Jets going off in different directions is just debris getting through your filter presuming you have one, very easily remedied, just remove the rinse bar and rinse it out, and more importantly sort your filter out. As for catching on sills and frames, I'm guessing this must be a long time ago, I use a sill brush and have never caught it on anything, I conscienously tried to this morning and can't. I vaguely remember reading the early versions weren't recessed which may have caused problems, today's sill brushes are recessed and certainly won't.