I am having an issue with my tripod. Not sure what you guys are doing to overcome it. Any suggestion you can provide will be greatly appreciated. Here is the problem. I have a carbon fiber tripod with a ball head. Every time I put my camera in the portrait shooting position, due to the weight of the lens, the camera would not stay at the shooting position because there is no longer any support of the camera body. Instead, the lens would tilt toward the ground. I hope this makes sense to you. Please advise. Thank you.