I have 2 G-10 Spydercos , and they're tough as hell. When they made the G-10 run , Spyderco eliminated one of the lightening holes just behind the blade under the scales to make it stronger.
I just received my Benchmade Bushcrafter the other day. My initial doubts about the handle ergonomics are put to rest. This handle is great on this knife ( at least to me.) The forward swell worried me , but it actually enhances the normal full handed grip on the knife. Even in reverse grip , chest-lever etc . it feels fine. I really love this knife , and the sheath isn't too bad at all. I'll see how it holds up over time. No worries if it fails as I make my own sheaths anyways , but as it stands it's good to go.
This knife is one heck of a tough built unit that's going to work well for all sorts of bushcraft tasks.