On Sat, 22 Apr 2017 14:49:15 +0100, Another Dave wrote:

Before I bin them, has anybody successfully sawn off the end of the heel
(the part that contacts the ground) and replaced it?

My local shoe repair franchise re-heeled mine by grinding off the old
stuff and gluing on 'rubber'[1] heels. The first repair lasted 2 years
and I've just had them done again.

[1] may not be actual rubber but neoprene or some such.

--
TOJ.