One can also toggle on/off the 2 engines separately and so far I haven't got any clicks from doing that. I also tried kind of mixing the two engines by activating Alpha engine via host automation then in the middle of its tail I automated the power of Beta engine and the two blended nicely. I think this is something I would bounce down and resample but in testing it works.
Edit: Oh, and an adjustable limiter
Edit2: I think Andrew ran to beach at full-speed after he sent the announcement out

