Thank you all for the suggestions. I have never seen nor heard tell of a mrs simpson or caddis emerger. I will give them a try!
I thought they may be too stiff/similar to cock hackle with not enough movement to be used as substitute soft hackle, but I will also give that a try.
Apologies, what i meant by uk patterns was along the lines of bumbles, dabblers, mayflies sedges etc. I have seen some patterns used in USA and Canada but I am unsure how well they would work for wild fish in mountain lakes here in ireland/Scotland. For example i have never seen anyone use a mrs simpson or even seen it in any tackle shops. Maybe I have les a sheltered life
Thanks again I appreciate any the advice!