Posing a question to those familiar with Enzo Bonafe's construction and blake stitch construction:
On EB's website looking through their product details, there is mention of blake 2-a/b/c and 3-a construction. Would anyone know what is the difference between the numbers and alphabets?
Is there a need for the use of a welt in the blake stitch construction? And for EB's blake construction, which part of the process is done by hand. Would it be both hand lasted and hand stitched (is there such a thing as doing a blake stitch by hand or are all blake stitched shoes done using a machine)?
I am not sure, of what the numbers and letters denote exactly, but EB is capable of Blake Stitched, Blake Rapid, and Handwelted constructions.
I do know that Blake 2C refers to their "Japanese construction", which is handwelted at the forepart of the shoe (180 deg) and Blake Stitched at the waist. This construction was initially designed for the Japanese market to give the waist a slimmer profile.
In all Blake (Stitched, and Rapid) shoes, there is no need for a welt.
In Blake Rapid shoes, the insole is machine stitched to a midsole, which protrudes a distance from the uppers, and this midsole is in turn, machine stitched to the outsole. Because of the width of this midsole and the layer of outsole stitching, it gives the impression / appearance of a welt around the periphery of the shoe. But strictly speaking, this is not a welt.
In Blake stitched shoes, the insole is stitched directly to the outsole without an intermediary layer, and the outsole lies more or less flush against the uppers.
To further compound the confusion though, there exists certain makers that make essentially Blake Stitched shoes, but these shoes come with outsoles with a fake "welt" and even fake "outsole stitching" around the periphery of the visible outsole to give the external appearance of a welted / or Blake Rapid shoe. I don't think this is particularly commonplace though, so we can largely ignore it.
I'm fairly certain EB shoes are all hand lasted (I didn't see any lasting machine while visiting the factory). But, the lasting process can be regarded as more or less independent of the welting and bottoming process. Meaning the lasting can be done by hand but the welting by machine (like Joe Works), or the lasting by machine and the welting by hand. Typically though, handwelted shoes tend to also be hand lasted.
"Blake stitching" (directly stitching the insole to the outsole from the inside of the shoe) can be done by both machine and hand. Though it is, these days, almost always done with machine. Indeed, the hand stitching method for "Blake Stitching" pre-dates the actual machined process that does the work these days. EB's Blake processes are both machine made.
DW describes his technique for "hand stitched blake" in his posts here:
http://www.thehcc.org/forum/viewtopic.php?f=11&t=6758&start=450