Bones: Might be but there's actually 3 NB factories in Maine; I toured the Skowhegan one. Maine used to be a big producer of shoes but with the overseas pressure New Balance is the only one left. They kept FOS and that kind of info design info close to the chest but I gathered they were generally no worse or no better than the competition in regard to adhesive strength. They had decent QA/QC from what I saw but, as you would expect, their main focus was number of pairs of shoes produced per unit time (1 pair in 44 seconds was their target if I recall).
Ian Riley, PE, SE
Professional Engineer (ME, NH, VT, CT, MA, FL) Structural Engineer (IL, HI)