Welcome dagobarbz! Airhead #96... you must be a long way into the 12 step program

Let's see that R65!
As for the wobbliness in the twisties, I'd say the bike is not fine. Though the R65 is shorter than the big Beemers, it has a tighter frame and a genuine top triple clamp instead of the POS steel plate on the type 247 bikes.. If it was all an issue of wheelbase the bike would be squirrely on the highway in a straight line. Panniers shouldn't start messing with the handling until highway speeds either.
In addition to Monte's list of things to check (and I'm sure he'd sell you on some Hagon rear shocks), I'll add (the obvious) tire pressure. MY '82 LS eats up high speed sweepers... but if I don't keep up with the natural rubber tubes the handling will start to suffer.
If you can't sort it out, a steering damper will surely help. One of our members, Shutterpilot, just put one on his R65 racer and wrote up a thread on it.