I have been looking at the new statistic set options and realised that this currently manual selection tool would be very useful and simple if given an auto mode in which each side has it's own statistic set associated by default ( side 1 uses statistic set 1, side 2 uses statistic set 2) and is used to determine when that side should be tested.
This would be especially useful when using the 'alternate' mode of the 'which side you show first' option. In effect a single card would be treated as two or more independent cards by the program making it very easy to focus on problems in learning a language etc. Where for example knowing the Italian from an English prompt word is more difficult than knowing the English for an Italian prompt word. On another example the reverse may be true.
Now that you have the different statistic sets built into the system I hope such an auto option would be semi easy to implement.