This rule would be nice, but I think there is a bug explicitly forbidding this moves, as they are not found at all. At least at the top of the tree search it should be found as far as I understand it?!
OK, we will get a lot of fun optimizing the parameters:) The parameters I use at the moment are stronger in average but they do often not find the move 84:(
Hopefully we get a feeling how to do the optimization, if we are at this point. Seems to be a little more difficult than just to find the optimum value. I already saw, that the parameters are a little weaker on cgos than my last ones,
but I think you can close this bug. We have to keep the parameter problem in mind!