It also depends on the Real Track. Some of the newer electric guitar parts are already pretty compressed and "hot", so you won't hear a lot of difference.

One thing to bear in mind is that, if you are recording your own parts as well for use in RB, Sonar or whatever, you might be better off normalising in those programmes, or just using the faders the old fashioned way except with automation(!), as, if the RTs are already very hot, you might find that, if you have to use shed loads of gain on your own parts to match them, you will end up with a lot of noise as well. You can hide this within a distorted electric guitar part, but it is harder to remove from your own vocal, acoustic guitar or whatever. Generally, I wouldn't ever normalise in BAIB for that reason. I tend to normalise in Sonar and either use the fader or apply gain to the part in small increments till it sounds right. It takes about 5 minutes more, but you end up with better balanced parts. Just my view ...

Brian