there ha go dissin all over my favorite iron
i could see a good strong 40 or a mid 50 but i woudlent consider a 60 unless you were willing to start making structural changes to the plane :-D. i also disagree with campy, i think that monokote is still very good and i dont see the need to spend more money on the pretty plack irons instead of the tower irons... though i do tink that in the FUTURE you will need a trim iron i highly doubt you will need it on this plane with virtualy no compound curves...