I, too, have eliminated most of my 32-bit plugins, and for the same reason: the possibility that they could misbehave. However, in practice there have actually been very few that have had any issues.
 
The only problem I have with the ones I still use is no more than an annoyance: they do not pass keypresses on to the host, so I have to click off them before I can hit the spacebar to stop/start playback. Aside from that, my remaining 32-bit plugins still do the job just fine.
 
In particular, there are four plugins that have no 64-bit replacement but are just too darn good to let go of: Kjaerhus Classic Compressor, Kjearhus Classic Chorus, PerfectSpace and the above-mentioned Hbasm Stereoizer. All of which perform flawlessly under 64-bit SONAR.

Beepster

mesayre
This is the method I use. Pretty straightforward.

Is that a French horn in your pic? Cool. You use this technique on your horn parts?
 
Inquiring minds and all that.
 
:-)

Hey Beeps - sorry I fell off the face of the earth for a week - was in Houston at an outdoor wedding during a hurricane :)
 
The horn in my pic is an approximate replica of a Beethoven-era natural horn (no valves). I play a nat horn gig from time to time. But I haven't had a lot of success using faux-stereo fx on horn - or really any out-there fx, for that matter. It always sounds too weird to me, probably because of the comb filtering. Not sure if that's because it actually is weird, in a bad way, or because I'm so accustomed to the normal sound that I can't stomach mucking it up :)