Each to his (her) own, and I will not judge others for how they think or prioritize. Personally, I either trust a component, or I don't. For me to speculate on which control surface a matchbox is less of a hazard if it fails, is a "no go". I do agree that the whole "getting the model up in the air" is a risk analysis of several "things" that can go wrong, and one can not eliminate all factors.... To do that, go build a static model. I have heard of modellers using servos they don't trust anymore for nose wheel steering and other stuff (doors, speed brakes and such), but why bother putting a known faulty component in your model? If that nose wheel servo locks during a high speed roll out, goes off the runway and hits someone....well, enough said.
As I started this post, I will not judge people that do so, I just don't understand.

Sorry for this side track of mine Turnnburn, lets get back to "programming the matchbox"



Kim