I read a trick for the R56. Chill and thicken it before applying. Either put it in the refrigerator or freezer and let it get thick then immediately apply. By the time it thins down its already starting to set a little.

Thats just what I read, I have never tried it.

A comment on using screws. If you do be sure that you screw into either a very dense balsa or light ply because unless youa re flying electric, the vibration will almost immediately wallow out the holes. Even hardening the holes with CA did not work for me.