I'm planning to get the above gimbal setup as a cheaper alternative to the full or Sidekick Wimberley for birding purposes but I have some questions and hope the to get some answers from the collective wisdom of this forum; 1. Has anybody seen or used this gimbal mount with a flash bracket? 2. After you've balanced the camera + lens setup, is there a locking mount to lock the lens + camera setup from moving / swinging? 3. Is it possible to mount an arca swiss QR clamp ont he gimbal mount? 4. I plan to mount my AF-S 300mm f/4 + D2Hs with the use of some TCs on this gimbal mount and but I've read about problems balancing this setup on a gimbal mounts like the sidekick and full Wimberley because of the camera weight. Will a longer arca swiss QR clamp (assuming question no. 3 is a yes) help for allowing better fore and aft movement for perfect 50/50 balance? I'm thinking of either getting either a Wimberley C10 or the longer C30 clamp. Thanks in advance.