I'm just finishing my new Katana140, and need some advice as to making it stronger.
So far I got an advice from someone who built it in the past (and crashed...) to open the wing cover and put little ply squares between the ribs.

Any other advice from anyone? (please - only those of you who built in).

Thanks.

Is that the same one GSP makes? the one Chief sells under their own name? I just finished it and was suprised at how well it went together. Measure your wing tube. If its 26 inches instead of 19 you got the new version and don't need to do any wing mods.