Thank you very much for your reply Mark.
I will follow your advice and look into a Zephyr. I will sometimes need to mount heavier cameras like the Scarlet, Sony f3 and may be the new Canon C300 when it arrives. I also will be adding a Teradek Cube and a Hocus Focus for remote focusing and occasional iris pulls. Taking all this into consideration along with your advise the Zephyr seems like a logical choice.
In the meantime I will continue to use the Mini to practice, get back into shape and earn a few £ to fund my upgrade :)
I used the Mini for a job recently with a Sony F3, Arri 16mm ultra prime lens and a Hocus Focus unit. It was a bit of a struggle as the arm was at the limit of it's capacity. I just about got the job done.
I took a few minutes out to follow the link in your signature and looked at some of your work. It was very good and inspiring. I hope I can get back into shape and someday achieve results similar to yours.