RE: Phoenix Strega motor for 120 class racing.
I haven't needed to strengthen the wing on any of my Stregas. The landing gear block is another matter. I hate the idea of cutting open a new pre-covered wing but if you want it to be carefree, you'd be wise to strengthen the blocks. Most guys cut open the top of the wing and add some reinforcement. If you take it easy on landing it will last for awhile in stock form. These do groove very nicely. Post some video once you get it flying. I'd love to see what one of these do with a hot big block 2 stroke.
Blessings, Terry