[Dynasty]

They definitely didn't have a falling out. Alan still regularly writes for the Two Plus Two Internet Magazine.

I know that Mason is basically overloaded with book projects. 2+2 just published the stoxtrader/zobags book. There's also the Flynn/Mehta/Miller no-limit book, the Zee limit book, the SnG book, the next Harrington book, and other issues. There's a limit to how many projects can be taken on.