Fwiw, it does depend on the individual and how they build their planes. I've helped several guys build SSC planes as a first combat plane, using 2 standard servos, and they always come out close to 2.5 lbs. However, if you're the kind of guy who believes that more glue is better, or you're always "improving" the kit design, then you might wind up heavy. One guy here decided that my fuse design needed to be stronger, and his plane came out like a tank.

(Never mind that the only time I've ever damaged an SSC fuse was when someone hit it with a prop. Driving them straight down at full throttle doesn't hurt them).

Which also brings me to the big advantage with the .15 powered planes. A well designed SSC plane will take a full-speed crash with out serious damage. Every .25 powered plane that I've seen can be broken in a crash with out help from another plane. Beginning combat pilots often drive in on their own, so having a plane that won't be damaged by that kind of thing is a plus.

And speaking of your SSC planes coming out that heavy, how are you building them? What is the design? If you can't get below 2lb 12oz, something odd is going on. You aren't using ripstop on them or something, are you? The best SSC covering seems to be colored packing tape. Some guys use Ultrakote or other heat-shink covering, but I prefer tape, since it's stronger. And tape will strink with an iron or heat gun to remove wrinkles later if required.