I'm heading to north Wales to do some of the enchainments from this article
http://www.ukclimbing.com/articles/page.php?id=435
I will definitely need rock shoes for some of these routes. I have a pair of light ish salomon hill walking boots but they're still bulky and heavy enough when climbing, and I need to go as light and fast as possible to get round these circuits in a day.
The only other footwear I currently own are light road running trainers and an old pair of merrell approach/high street shoes.
Do I need to invest in a pair of proper approach shoes, or could I expect to do things like bristly ridge, crib goch, tryfan north ridge etc in trainers?
Thanks