Thanks guys. In the end I used Gorilla glue. Given that I have a small gap both sides where I have sanded to get the h stab level I wanted the gap filling properties which after listening to you guys ruled out CA and epoxy. Gorilla glue is new to me but I was surprised how easy it is to clean off when foamy and delighted with teh strengt of the joint I did on a test peice. Good find!!!!

Thanks for your help guys.