Bristol_Jonesey
In my opinion, you will have a more flexible workflow if you choose to freeze your synths, rather than bounce to track, but there's no harm in doing either.
I agree - especially of you freeze without applying fx. I hardly ever bounce anything, but if for some reason I do want an audio track rather than a frozen synth I just drag the "frozen" audio to a new track. I've never timed it, but it always seems that the two stage freeze/drag is also quicker than a single bounce.