Arm / Cart compatibility

Arm: old SME 3012, 9.5g effective wt.

Cart: old Cardas Myrtle Heart, 9.1g wt, 15 CU compliance.

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Is this a good marriage ?

By age-old wisdom, this SME needs a "super compliant" cart.
Is 15 CU "super compliant" ?

Table should not matter in this question (should it ?).