From memory, the ‘modern’ handbrake first came to light on the limited edition ARP 4.
I remember it as an issue then,
My 20+ year old 4/4 has the ‘original fly off’ handbrake,
Never a problem and very effective.
So, not sure why MMC changed the design
Bud
4/4 - Stanley


Bud
4/4 "Stanley"