These smaller models without flaps really need to be light! There is an ongoing discussion about weight in the larger, higher powered models. Generally, I find that lighter is better, even in a 60-size plane.
A Flying Clown in electric would be tough to make light! The weight penalty in batteries would defeat any attempt to come in under weight.
I have an electric Ringmaster, which is just so-so because it's too heavy. On the other hand, I have a Ringmaster with OS 15 that is now at 17 oz. It was a couple oz. lighter before it shed a wing and had to be beefed up! Of course, special construction techniques are necessary to achieve that weight. (one dare not crash such marginal-strength construction).
Floyd in OR..