I understand, from second-hand info, that the Starlet's spin characteristics are:
- recoverable.
- spin becomes more like a flick, very oscillatory.
Are you really going to spin test it yourself and get it approved? Don't take this as encouragement to do something bold, but if I had a Starlet myself, I'd want to modify it to fix those spin characteristics.
I belive that the Pazmany Pl-2 is also approved for aerobatics (not sure whether it is so in Australia) but it has an unrecoverable spin after about three turns.