I have a Tiger 2 which is the little brother of the Tiger 60. I'll share some of the things I did with mine. (btw the maiden flight will probably be next Tuesday, or Thursday depending if I hurry or not.)

I didn't reinforce the landing gear like suggested, but I did epoxy it in. Reinforcing it lightly defiantly won't hurt it.

One thing I don't see mentioned is to defiantly reinforce the blocks that your wing bolts go into. I added some triangle stock to mine. It seems to be holding up well.

I also removed the wing tips like someone above suggested. Instead of using that triangle stock I just cut some 1/4" balsa and glued it on. Maybe this is a mistake, but I really don't think it will effect the plane that much. If it does affect it, it will probably be in a good way. If you guys want, I'll reply to this post after the maiden flight and let you know how everything went.