I notice you have built many pairs of speakers and most of them you like with an exception of the Nirvana drivers. To assist those who like to build speakers including myself you may like to summarise the strengths and weaknesses of each pair, eg suitability to certain kind of music, best overall performance and the reasons why, etc.

By explaining your reasons why, potential builders will choose the pair that suit their taste(to some extend similar to your taste as well).

Just a suggestion.

cheers.