MMF-5 compliance question

Can't seem to find info anywhere on compliance/weight allowances with carts on this arm. I've now about narrowed down the cart to just a few, esp. the Dyna 20xh which is 8.3 grams and compliance of 12 OR a used Benz micro H2 brier wood at 9g needing 14-15 compliance. I love the idea of the used Benz as it's broken in with about 400 hours with life of it reaching "thousands of hours" apparently.