Not bad Eric, you got your problem sorted within 45mins, of posting it.
Yeah, I am using the v3.8 VST versions, of the UAD-1 plugins, with SONAR 4.02, and the only performance issue, I still encounter, is the persistant problem with freely using PPI's and project looping, in a SONAR project. I am hoping the forthcoming 4.03 update (which addresses related gapping issues), will fix this specific SONAR problem, once and for all.
Otherwise, the UAD-1 plugins are performing as well, if not better than, any other PDC capable host app (ACID Pro, Nuendo, Samplitude, Vegas 5) that I've ever tried them in.
Well, execept maybe the latest Project 5 2.0.
It surprisingly stays gapless, even when inserting and deleting UAD-1 plugins, from tracks & buses, during playback, with full auto PDC. Oh, and the project looping, with PPI's, works as advertised too.