If during the expansion you simply get the best compromise between 8ths, 12ths, 15ths and 19th where possible then the natural stretch of the piano will just happen. I'd rather tune faster with very small amount of overstretch. BDB Yikes! I suspect that ETD users spend too much time trying to get the "needle" to "stop" because they are unsure about how much inaccuracy is ok or not. I couldn't agree more either.
nest...