I got 'trained' on these last week.
Unbelievably long list of combinations that they should be stacked in; must wear gloves to unstrap them; exact same number of tops and bottoms must go back out to each DSA company.
They're cumbersome, the strap retention system is broken on loads and it takes you ages to stack one as the brakes don't disengage the wheels properly so you end up with a wobbly Jenga-like tower.
Unsurprisingly they all get dumped in a little pile next to my ILSM in favour of trusty Yorkies
