I would show up, at least occasionally. The BH rides have been pretty lightly attended, so I don't think this would step on anyone's toes. 6:00 works for me; actually, if anyone is interested, I would start around 5:00 at Quarry Park and ride a bit there before heading out to QR to meet at 6:00; it is about 25 minutes out the Southwest/Cannonball/MR trails; more miles and no time in the car.
I am probably not ready to throw in the towel on trying to get folks to ride at BH, so I would likely be up for every other week.