I don't know about that particular kit of the T-6, however, scale T-6s often have tip stalling problems due to the narrow tip chord and swept wings. To get rid of that problem, a "good" kit will have a fair bit of washout, which can make a huge difference in take-off and landing, but reduces your acrobatic abilities, since washout becomes washin when inverted.

I've heard the T-34 Mentor mentioned aboe is a really nice flying plane with out bad habits. Does a military trainer count as a "war bird"? If it does, you could always do a Tiger Moth (I'm working on one now, going to paint it in RAF war time colors.)

Most Sukhoi kits are going to be designed for advanced acrobatics. Done scale, it's short coupled, and has a fairly small wing. So the wingloadings and controls are going to be designed for someone to really do some wild stuff with the plane. Some of those kits might be ok if you reduce the control throws (and many lenghten the tail moment from scale anyway).

In theory, you could have a Sukhoi-looking plane that flew like a 4*, all it would take is careful choice of airfoil, a little creative scaling with the wing and tail, and some conservitive control surfaces.

On the other hand, the Sukhoi that I have (had? I still have it, but it's pretty badly broken) has a rather thin wing, and had a nasty violent snap rolling tendancy. That snapping made it tons of fun. It's also what killed the plane (with some help from the pilot), as I tried to exit a tail slide a little too low, a little too hard on the elevator and didn't have the altitude to recover from the resulting snap. (I also think the nose weight fell out just prior to the tail slide, making it deadly tail heavy, but that's another story).

How important is scale look to you? I mean, the Sukhoi is "scale", but not a plane most people would recognize. You could dress up a 4* or some other kit and it would pass as a "real plane" easily, and get all the aviation nuts wondering "what is it?". You can add on a cowl, change the wingtip and elevator and rudder shapes, change the canopy and turtle deck, and cover it in a "military" looking scheme, and it's amazing what you can come up with.