I know it's been a while since you posted this but if you're a slow builder (like me) and have not yet built the wings I'd suggest that you pre-glue the blind nuts in those strut attachment points. If you follow the manual you'll find it almost impossible to complete this step properly on the front mounts. Other than that (I'm pretty much done with the structure) I have nothing but praise for this Sig kit.

Should the unthinkable happen I will definitely build the kit again.