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 From:  Michael Gibson
4623.32 In reply to 4623.31 
Oh yeah, yeah that's kind of a good practice overall because the more things you have running into and overlapping each other tends to make things more difficult for surface/surface intersection calculations.

So anytime you have a chance to reduce the complexity of an intersection by possibly rotating some particular seam edge out away from where it makes things more complicated is a good idea.

It would certainly be nice if it wasn't necessary, but setting things up with less complexity usually makes for less chance for things to get confused about 2 barely skimming things that you are trying to intersect.

Also it's not great for the filleter to have a bunch of complex diced up edges rather than a more simple edge structure. Filleting is a pretty sensitive area so it's usually a good idea to try and give it a more simple edge structure to deal with if it is possible to do so.

- Michael