Hey guys, I'm looking at purchasing either the Glidecam HD-Pro or Devin Graham Signature to use with the Canon C200 and 5D Mark IV. Due to the heavy weight I will probably be using the 5D Mark IV on it 90% of the time. A stripped version of the C200 comes just under 10lbs. Just wondering if I will notice a huge difference in weight between the two models, especially when using the 5D Mark IV. I really don't want my back to suffer and I won't always have access to the X-10 Arm and Vest. The HD-Pro seems to have replaced both the HD2000 and HD4000. Definitely want to go with the model that is optimized for both of these cameras. Any info or suggestions would be much appreciated. Thanks!