Originally Posted by chogall
Just trolling. lol
And yes, some makers uses the same last and and pump heel height too much and shortened the toe spring.
But my conjecture is that altering heel height by 2-3mm should be within acceptable range as top lift does worn out especially the rubber part of it. Correct me if I am wrong.
I, frankly, don't know for sure. I know some good makers who I respect who find such practices acceptable. I was always taught that it was not. I, personally, think once we get up on a heel the foot needs more support and more correct
And every modelmaker and lastmaker I ever spoke with was firm in his belief that the last had one heel height...and one only. Thinking about it... I suspect any maker who carves individual lasts for a customer would be highly resistant to the idea of raising or lowering the heel out of spec.
It also depends on the last. Not that some lasts make it easier or more acceptable but simply that some lasts are so non-supportive that raising or building the heel higher or lower than what the last is designed and set for, probably doesn't make much difference. It's never going to be right no matter what you do.
But if I have a last that is set for one inch...and is built correctly and supports the foot correctly at one inch...then raising the heel throws the balance and the weight of the body forward of the treadline and increases the potential for fallen metatarsal arches and bunions.
I've never given much thought to the reverse--lowering the heel height below what the last is set for--but I would guess that there are consequences...at least long term.
Bottom line is that...as I've said again and again...the foot is one of the most architecturally complex structures in nature. You disrespect it at your own peril.
Beyond all that...building the heel of a shoe out of range is not what I was referring to in my previous post. I was simply saying that...whether because the shank support is omitted or some other reasons...many manufactures build the proper heel height for the last but don't build it so that it sits level. No third party can know whether this is intentional, or accidental or even how much. Without the original last.