I think this all depends where your wing broke/tore last time...:
- Adding a sheet of lexan above (and optionally a second one below) the wing will reinforce it around the wing mount and the mount holes.
- Buying a beefier wing helps to reduce how dramatically the wings tear of break, but sooner or later something has to give... so a beefier wing too will somehow buckle or tear at some point.
- A tear between gurney flap and side dam is something I find pretty harmless - I found if it tears there, it often delays further deterioration elsewhere on the wing
So try and find a wing with a thicker base than the side dams and gurney flap - the LMR wing is a good example of this imo (it tore quite quickly between side dam and gurney flap, but it lasted for ages without further damage)!
On a slightly related note, I just don't fancy body clip wing mounts: Bad fit (often has too much play), needs mods to add reinforcing sheets and I've seen the clips fly off during races... You could modify the wing mount to use screws instead of body clips. Since the Durango mounts don't have a lot of meat on them for a screw mount, I've made a design to be 3D printed (it's arriving tomorrow):
I'll be testing it soon