It`s good we agree on most things I know we are after the same goals.
But I say this, the goal in a good current set up in my opinion is this.
The more breaking and lift you can get from the airframe ,the less you rely on the breaking from the prop. Now,The more ability you have to select the best overall prop. because you dont need the low pitch for breaking,, Higher pitch,-quieter prop.
Multy blades have never and will never trump single blades in flexibility and efficiency.Drag for the most part should only be the result of,or byproduct of lift (as much as you can afford) and running 13-14 inch picth on any motor cannot give you both good breaking, and low end touque even with multy blades. (APPLES TO APPLES)
This is why the Bipe is the best setup, but till now , we have not had the power or the abilty to take advantage of this goal.
Thin wing bipes are just as fast or faster than the mono planes (using the speed to achieve lift) ,it`s why you saw QQ use a four blade (for breaking) and when he flew the electric version he flew even faster!
The new Bigger Bipes have the breaking built in the airframes,not the props.
As far as the sound test, there were many electric that were right on the edge , one glow, us,one Contra, Chip , failed, till they recalibrated the meter.
There is some wear and tear to be sure with glow, but as always, the better the build,setup ,the better the longevity of equipment.
Plus We were queter than almost all the electrics in the air.
I dare say unless you fly masters or FAI for the most part you never fly more than 200 flights a season anyway and if you make a season on one set of equipmet (servo`s ect ) thats really very good.