RE: plane for a super tiger .61
A few (alot) years ago I built a 60 size Kaos (tower kit, no longer in production) and after throwing away most of the heavy ply I had a nice flying plane that was capable of sportsman and intermediate. Whatever you choose, make sure it is light and the 61 will fly it just fine.
I recently saw a Javelin with an evolution 61 that flew surprisingly well.
good luck.