Jim, I have been working that way with the band for 3 years..
I add additional vocal backgrounds as well..we work primarily as a trio..two keyboards and lead vocals..
You are right..this is the easiest way to have the quality sounds you are use to..I record my G1000 this way..Until recently this was the only way I found to get quality synth sounds to MP3...but my Hyper Canvas does a super job, converting sequences to wave/MP3...