I run 1x10 on my cross bike with an unramped chainring (which I got from you!) and inner and outer chainguards, and I still drop the chain sometimes, even on the road (rarely, but it has happened). If you're moving around on the cassette at all, your chainline is varying and just the tiniest bit of chain suck at the wrong time can bounce the chain off.
There are the new fancy SRAM chainrings, and also RDs with clutches, but I haven't tried any of that stuff.
Is single speed at all an option? You could save a whole lot of weight that way, and no risk of chain drop.