Clarification for newb please: 32 bit plus ok in X3 or not?

It is supposed to do that.
Sometimes it does not work.
Welcome to the real world.

For the sake of stability I only use 64 bit plugs as a rule.

Some 32-bit plugins work just fine in 64-bit Sonar, and some do not.
 
Many folks have gone through the exercise of switching completely over to 64-bit plugin use, and many limit the continued use of 32-bit plugins to those that they test out to make sure they work properly with either BitBridge or JBridge.
 
Lots of plugin vendors have released free updates to include 64-bit versions of their plugins, so often it just involves looking to see if your 32-bit plugins have been released in a 64-bit version.
 
I used 32-bit versions of MinimogueVA and ARP2600VA for quite a while, but finally saw a great deal on a collection of synths from Arturia that included 64-bit versions of the Minimoog and ARP2600, so switched over to that collection, and am now exclusively using 64-bit plugins.
 
Bob Bone

What I did was to create a new sub-folder in my 32-bit VST plugins folder, and I would move ones that I found still worked properly in 64-bit Sonar into this new sub-folder.
 
I added the new sub-folder to the search path for 64-bit Sonar, to be the ONLY path to 32-bit plugins, and this works well for me, because I have retained a 32-bit X3 install, which has the parent folder (the 32-bit VST folder) - and the 32-bit Sonar will pick up the sub-folder and 'see' all the 32-bit plugins, while the 64-bit Sonar will only 'see' the 32-bit plugins that I moved into the sub-folder.
 
I hope that made sense, 
 
Bob Bone