I agree that an OBG driver is not for every plane and everybody.

As for the added weight. My system typically weighs around 2.5 to 4 ounces complete with wiring and a 1400mAh SC cell. Substantial for a .40 size bird, but not completely out of the question. On .60 or larger, I don't notice it at all.

What's nice is that I've gotten my 9C set up so that I can do any of these 3 by flipping a 3-position switch:

1. always off
2. always on
3. on depending on throttle position (setpoint variable with a knob on my TX all the way from idle to full throttle).

Heck, I can even set it up so that the OBG comes on near idle AND again near full throttle, but not in between. Not that I really need this level of flexibility on every plane I own, but then again do any of us really need to fly RC airplanes in the first place? For me, it's fun to mess with this kind of things, just like some RCers like to mess with peumatic retracts. It's all about having fun.

If it ain't fun for you, by golly don't do it.