A very experienced Morgan racer told me that he never left his Morgan parked with the handbrake on after a race. He used to reckon it was the quickest way to get oval brake drums. His car was always left in gear.
I've had no problems with the original handbrake lever in my car and I've got a set of Sabelt four points in my 4/4.
There is a little mod you can to to the chromed thimble at the top which is to tap the lubrication hole out and fit a grub screw to stop the thimble unscrewing
Arwyn