In reply to tallsteve:
The information in your quoted thread is rather irrelevant to both disscusions.
My point is best presented by example of the life of a boot in production, take scarpa:
Here is a multinational company producing boots for most of the western world for various sports, in various climates. They are also smart and understand that even although they think that 90% of people fit the SL (they don’t) there will be people out there who need other boot shapes or boots for different jobs (like Everest or the john Muir trail).
After you have thought about what you need your boot to do and where you chose your fabric. Scarpa use 7 leathers and various textiles/plastics in production all which have different lengths of time on lasts and have different break in speeds. Thus they respond differently to wear and tear.
They then build the boot on a last to give it shape, these lasts change from boot to boot and as a result they have different fittings for all products on their range. The BX (ish changed a little) last is used on the current the SL M3 normal fitting as is the narrow boot by UK standards. However the M3 is also available in BXX and BXD (Wide and Lady). Its big brother the new (and pile of ..) M4 is made on a RSN (male) and RSD (lady). Some boots are the same across the range, take the Lady ZG65 (a great boot from a sales point of view), it is made on the LBA last which it shares with the ZG's 10, 20, 40 and Nepal.
After the boot comes off the last (time depends on fabric), a sole and rand (maybe) is put on it. This again changes the shape and fitting of the boot. The M3 and freney have diffrent soles with the freney being much more curved than the M3, this again changes the fitting as does the rand which in the case of the cumbre is large but in the case of the M3 inst there at all, this will also change the fit.
my point being that simply summing companies, countries or groups of people is not a good way to start your process. Unless you are really trained in boot fitting (I am) you will not be able to make a judgement in this manner and could make your life a lot worse by casting off a whole group of boots.