Use a GOOD throttle servo, a BETTER throttle linkage, absolutely a KILL switch, reinforce stuff properly, and HAVE FUN!!!!!!!!!
I thought the Obs would be a pig, but it has become a HOOT. I don't do stupid, crazy stuff with it, and really work to NOT overstress the airframe.

Risks of overpowered and overweight airframes pop up when we "forget" what we're flinging around the sky..... just be on top of it every minute, you will have fun.

Except for the prop-breakage-risks..... [:'(]