In reply to jshields:
Great to hear you're back climbing firstly. I'm below knee too, but a Symes amputation. So may differ from yourself.
I've tried different types of foot that are offered on the nhs. I've found this year that the 'Rush' foot works well for me.
It's just a normal foot that has more flex, so I can really push and smear on things, but is also stiff on edges.
I'm not climbing hard to be fair (VS/ HVS on a good day) so I'd suggest just do what you're doing and try different ones and see what suits. If you're climbing really hard you may want something that's adapted specifically for climbing, so speak with the technicians, they're usually really keen to help out especially with new projects.
Hope some of that waffle makes sense. Happy cragging