I know it's going to sound like a broken record, but -

Move into Realband for the finish work. You can highlite the end section and regenerate just that section on any track (or multiple tracks at a time) over and over very quickly to audition. Much more efficient, and I think it does a better of job of tuning the endings in. I never try to finish a song up in BiaB; that's why Realband does what it does how it does it. They give it to you free with BiaB, try it. It is the biggest step you can take to finish off your BiaB project in so many ways. Easy control of the mix, ability to add effects to any track easily, ability to add final effects, ability to copy, paste, and slide parts around, so many new things for those who only use BiaB.

I do not work here, but the benefits are still awesome
Make your sound your own!