In reply to jfdm:
Hi Stevie, thanks for your advice.
Something like choosing a different shoe should be simple but in the end becomes a mind field!
I have been using my Boostics 2-3 times a week since October.
I can't really remember how uncomfortable they were but remembered that I had to keep taking them on and off until they had broken in. I have had them for such a long time now!
It just surprised me what the difference was between the narrow toe box of the 5.10 compared to the Scarpa. The Verdes seem to be a good fit but hope that they stretch a bit width wise.
Many thanks for your help.
James