Ya I think I've only ever broken a wing once on my Kraton when it was pretty much stock. Broken tons of those screws with stock and RPM wing mounts but so far none with this mount even with aluminum bulkheads. And no the screws are same size no different from stock.
Absolutely love my 3D-RC wing mount and can not break it or at least haven't been able to yet. Here's just some of the Absolutely brutal landings it takes without a single issue. Not only is the wing and mount still fine but also my gearbox and rear tower. Also my Noto is a pig with the m2c...