Originally Posted by shoefan
Well, it depends what you mean by that question....For sewing the outsole to the welt,
not that I can think of. Although, honestly, the stitch density (today around 10 spi for 'West End' work, depending on style, thickness of upper, thickness of sole, and other factors) for outsole work today may be more aesthetic than functional. If all purpose adhesive is used to attach the outsole to the welt/filler (in addition to the stitching), one might argue that the stitching is almost superfluous, and hence the stitch density is not relevant. Also, I believe that the middle-European standard is more like 7.5 - 8 spi (1/2 'stich' length), and often is done with a sewing awl, not a stitching awl. That being said, look at some of J-mac's impeccable outsole stitching, and you can sew why the stitching is considered desirable.
I think, however, that an oval awl is used for turnshoe work and for the (blind?) stitch used for a lightweight slipper -- there are only a few makers left who know how to do the latter (including j-mac). Also for a hand-sewn equivalent to a blake stitch.
All inseaming is done with a sewing (oval) awl. The shape and strength of a stitching/square awl would not work for an inseam stitch, so if your question includes the inseaming, then yes, there is a situation where sewing is preferred to stitching.
Things get dicey here.--I believe by your own and j-mac's definition, the outsole, around the forepart, would be "stitched" to the welt, not sewn...as you say above.
I might add that I've heard repairmen say that with modern cements, the stitching is superfluous. I think it depends on conditions that the shoes are worn in--I've seen cement sole construction come apart.
In any case, while I use cement, I would not rely on it and I would also argue that cement creates as many problems...for the shoe, for the maker, for the Trade, for the environment...as it purports to solve. Another answer to a question that never needed to be asked unless expediency was the goal. In any case, it is a dangerous and cavalier assumption, IMO.
As an aside, some inseaming...in some Traditions...can be, and often is, done with curved diamond point awls--AKA German or sickle awls. Perfectly doable and fine. Is that sewing or stitching?
Beyond that, and to the question, the outsole in the forepart is usually stitched; the outsole in the waist, esp.a waist "set under," and heel seat, if attached with thread, is sewn.
And upper work at very fine frequency might very well have been stitched (I don't see how it could be otherwise.)