My second after my Nexstar was a Tiger 60. Very nice to fly, very forgiving, yet does everything I wanted the Nexstar to do but could not. First engine on the Tiger 60 was an OS 61 SF followed by a Super Tigre 75 with a tuned pipe. Good power.

I also have the Four Star 40 and love it. Mine has an OS 50 and flys like the dickens!!

Enjoy whatever you finally decide on, but if it were me, I would opt for the 60 size aircraft.. easier to see up there.

DS.