1st seat favorable, MPs scoring.
I'll split this into 2 polls, one for standard methods, and one for the system in use.
For better or worse (mostly worse), we were playing a strong club system without the precision 2C opening, so 1D would have to cater for all opening club hands as well as the diamond hands (2D opening is multi, this hand wouldn't cover either option). 3NT would have been a specific ace ask. With all that in mind, what do you open?