Thanks, the wing strap approach is good and I will look at that, looks like I need to revisit my build plans in future so as to prep the wing better in the build stage. This current build idea has not worked out and I am now going to work on a retro fit probably using magnets and tape.
I have returned to RC modelling after 30+ years and this is my second set of foam core wings, looks like I am making some mistakes.
Appreciate the replies.