Since you seem to have your finger on the Metaquotes pulse, do you have any information as to when they will be fixing the following,

A. Getting rid of the holes in the downloadable history
B. Stopping the history files becoming a corrupted aggregate of different data sources
C. Stopping the count on the genetic optimizer wrapping with large search spaces

I, for one, would really like these fixed, as the backtester seems to work well given the correct data. I have brought this stuff up on the MQL forum, but to no avail.
Regards