I like to hear things the way they will be, and not have to concentrate too much on technical details like changing to low latency plugs or bypassing the effects before recording. So this proposal would let you leave any FX plug in Sonar and it would not affect the VST synth.
For example , I use JJP Vocal which has a latency of 473, and I like to leave it in place at all times.
And today, I had a keyboard player over that was using a B3 Clone VST. I wanted to change projects and show him some of my work in process to play around with, but then I would have had to re-install the B3 clone in each project. This has less to do with latency than convenience.
I suppose it would be kind of like the old days when I put my soft synth like giga sampler on a separate computer with very little latency, and then ran it into the audio inputs of Sonar on the DAW configured with plenty of ASIO buffers. So the soft synth was independent of Sonar. I would like to achieve the same thing only just using the one computer and have the output from the VST host go internally to a Sonar input.
Not a big deal, just wondering if anyone figured this out.