Hey fellow South African,

I have flown Edges, Caps, Yaks and Extras of all sizes and in my experience the smaller ones do not fly nearly as well as the bigger ones (27% +). The smaller ones somehow tend to have higher wing loading, like to drop a wing on slower landings, whereas my friend's 30 % Carden Yak is a dream to fly and land.
Of all the aerobatic, smaller planes the one I like to fly the most is a... Stik. A Stik can fly the sportsman's pattern routine and tracks very well if set up correctly. I also dreamed of flying a small scale aerobat but after trying a number of them I find they don't hold a candle to a Sig Somethin' Extra, Big Stik or something like a H9 Showtime which tracks great, hovers well and lands almost like a trainer.
Fly the Edge. Go for it. But don't think its going to be a better experience than your Stik.

Ray