I have read that page (and a lot of the 111 pages that follow!) and while there are some nuggets of advice to be had, there are also lots and lots of warnings.

As I said, it would be really nice if someone could compile a list of what these firmware and DSP updates actually do; what problems do they solve and what features do they add. It would then make it much easier to decide whether to take the risk of doing them - or not. If anyone knows of such a list I'd appreciate a pointer to it.

Thanks.