Hi Folks,
I'm pretty sure you can try the new stretch feature first. Go to the realtracks settings menu (ctrl + rt icon sax)) and tick both--use speed up generation of realtracks and --high quality tempo/pitch stretching--. Untic --use +/- Realtracks for generation --. Then open an all rt demo and generate it-noting the time it takes. then change the tempo 25 or 30 and generate again. On my machine it takes around two seconds longer on average if I don't go too far from the original tempo.

For example, I loaded Brent Mason RKMDMB2 which took about 8 seconds to start at 120, about 9 seconds at 140 and about 13 seconds at 60. These are all acceptable to me but maybe not to someone else. I'll probably use it this way for awhile and if I don't encounter anything worse than that, one of these days I'll hit the +/- button and erase all the pre-stretched files.

Later,
Jim

I'd be completely happy if I had just one more guitar.