Thanks - the stats page is exactly what I was talking about, don't know how I missed it. I was especially pleased with the plotted graph of the users (my!) progress.
The next UI update will also allow you to look further back through your recent problems instead of just the last 50 as displayed at the moment.
Nice to hear about the comments etc. being hidden too. I must admit that the rating is the first thing I check normally so I know what kind of problem I'm solving. Should be interesting to see how it affects my play.
I think the new approach will much more closely match over the board conditions, so hopefully it will help tactics training map more effectively to in game improvement. I'd expect a bit of a drop in success rates for the same difficulty of problem, however this will likely be offset by a slightly easier overall problem set in the next problem set update (due to many of the much longer mates having been culled due to a much harsher ambiguity filter).
Regards,
Richard.