I know I may be opening myself up to some flames here but one thing, if I may bring to light...
By going with a gasoline motor vs. a glow motor you should also consider tank size weight savings (have you ever weighed a full 30 oz tank)? With a gasoline motor you can use a MUCH smaller tank due to the lower consumption rate compared to glow. Many times you can offset the few OZ difference in that alone.

I just think it's kinda funny when we start comparing Glow to Gas. Both have benifits, and drawbacks.

Glow= Lighter motor, higher fuel consuption rate, larger tank, more power per cubic inch (higher energy potential in fuel), more expensive fuel.

Gas= Heavier motor (ignition, battery, etc.), smaller fuel tank (lighter), less expensive fuel.


I fly a H9 Edge with an RCS 1.40 and have a ball with it! I feel the RCS is fine for "Scale" Edge characteristics (if you've seen the full sized Edge they are impressive none-the-less). However, it does have limited verticle (about two hundered feet from level pull-up). I have other planes that I use for full-on 3D but I do really enjoy USING the airframe instead of relying all out thrust from the motor.

It's all in HOW you want to fly.

Glow or Gas? Hey...get one of each (wish I could)!!

So, would I fly your Edge with the RCS 1.80....??? (YES!!)
Would I fly your Edge with a ZdZ 40? ... (Heck ya!)
But will YOU? Ultimatly, it's your call....

Good Luck and keep us posted!
High Flights!
CrazyHerb