My second plane was the Tiger 60 with an OS 61 SF. It flew just great. Very forgiving. I did my first couple of flights with it on the buddy box because it was different from my Nexstar trainer, but quickly weined away from that and flew it on my own. It's a tough bird, I can tell you that.. after the abuse I gave it.. it's still around.
I eventually swapped the OS 61 for a Super Tigre 75 and a tuned pipe. Wow.. from a great performer to an outstanding performer. It's very capable and versitile.
You have my vote, for sure!! Go Tiger!!
But, as Moondoggie said.. if you can deal with it, build both!!!

That way you won't have to make a decision..
CGr.