I have more than a few songs done on a multi and then imported into Sonar. I have one of those songs re-recorded from scratch in Sonar. I can't do much with his imported stuff, it's already got the effects. At least in Sonar, it goes in dry and I can tune sims all day long til I find THE one! And Nectar works best on a dry vocal so far as well. I am glad the little 2i2 has no latency issues at all. He can hear what he needs to, and I get a nice dry signal to work with!

williamcopper
Right ... it's also sometimes a factor in making a mix, without the FX, whatever it is, the sound isn't right, and it is extremely difficult to imagine a future improvement while working without it. 

Use freeze, or premix the track and archive the original.

ampfixer
I was aware that all plugs have some sort of overhead. What fascinates me is that Waves lists the latency by platform and recording frequency plus some plugs have less latency when recording at 96k than 44k or 48k. That's got me wondering if ALL plugs have less latency at 96k. So far it's not consistent.
 

Computers do not think of buffers as time/delay/latency they think of buffers as a number of bytes of data that is stored prior to being processed. If a buffer is a certain size (bytes) then whenever you fill it with more data delivered at a higher number of bytes/second it will fill in a shorter time. The  effect of this is that if a plugin has a fixed size buffer and you use a higher sample rate the delay caused by that buffer in msec will be shorter. A given buffer will fill at 44.1K in about twice (96/44.1=2.17687) the time it will fill at 96K, introducing a latency of about half as long (time) at 96K as at 44.1K. Some programs may be designed so that they have buffers that vary in size depending on the demand, and there are other factors aside from buffer size that introduce delays, so observing such a simple relationship for all plugins is not likely.

Thanks man, that was a great explanation and tracks 100% with my observations.

ampfixer
I was aware that all plugs have some sort of overhead.

 
However keep in mind that "overhead" is not the same as latency. It is perfectly possible for a plugin to use a lot of CPU but have zero latency. Or to use almost no CPU but add a lot of latency.