I'm sure it would become clear if I read all 105 pages here but I'm wondering if someone would be kind enough to save me the time.....?
If I use the links in the OP and follow the instructions, will I be getting a reliable, stable version of rockbox? I'm eager to try the features (especially crossfeed) but (due to lack of time, rather than enthusiasm) I'd rather wait a bit if it's still buggy. The official rockbox site doesn't list the DX50 as supported.
Many, many thanks to those who are doing and supporting this development!