Build12 is working fantastic on JD....   Very few hangs, and all of the ones I've seen have been from my side.  The bot thinks it sent the bet, but it got lost internally and never makes it to JD.  That's a lot easier to correct (just do the bet manually).  And that only happened a few times when I had ill behaving wallet clients running.  It now runs for hours and hours, where in the past I was luck to get 2 hours straight, and usually around 20-30 minutes.