Hi Tony

Just related to your requirement for a ball head, have you looked at the Acratech GPSS,

https://www.acratech.net/ballheads/gp/gpss

From the website:

"A smaller version of our GP Ballhead, but it maintains the 25 lb. (11.4 kg) capacity, and the ability to function as a ballhead, gimbal head, and a panorama head.
The GPSS has a shorter quick release clamp, and a smaller base diameter than the GP. It is perfect for travel tripods.

All Acratech Ballheads are designed to be lightweight and rugged for the active outdoor photographer.
The open structure lets moisture, dirt and debris fall through instead of being trapped inside a socket.
Available with our Arca Swiss style, knob or locking lever quick release clamp."

I purchased one recently from O/S (on special) but they are available from the local supplier:

http://photovideo.com.au/acratech-tr...ad-p-7171.html

I have yet to use it in the wild. Playing in the house indicates that its performance should meet all the claims made by Acratech and I am very pleased with it. The main driver for purchasing this unit in my case was the ballhead/gimbal/pano head flexibility.

Cheers

Dennis