Been looking and looking lately all I see is people not using brackets anymore. Just flipping upside-down and adjusting sled length or gimbal placement. Guessing it's due to all the ergo-handles out on the newer equipment.
I've tinkered around with a 3A gimbal and low-mode J-bracket http://steadimoves.c...2014/01/hh2.gif actually that bracket minus the hill handle. It seems really difficult to make function right when using a long post due to the awkward off-angle with a 3A handle being upside-down. I have resorted to actually attaching the bracket to the gimbal itself instead of at the arm, so that the gimbal is right side up. A long post is then fed upward through the arm and secured at the top to prevent it from sliding out. This way the post isn't canted at a massive angle / gimbal arm isn't hitting the post.
My best guess is that the bracket just isn't appropriate for use with a 3A gimbal handle. Is that pretty much the case, that the 3A gimbal handle is unfit for long arm post low-mode ?