What's the best Stereo basket solution for an MKH 60/30 mid-side configuration?

For an MKH 60/30 MS rig, we'd recommend the Stereo Windshield WS AG MS Kit. More information on this solution, including order codes, can be found here:

http://mymic.rycote.com/products/windshield-solutions/stereo-windshield-kit/stereo-windshield-ws-ag-ms-kit/

We would also recommend the addition of a Connbox CB3, for internal cable routing:

http://mymic.rycote.com/products/connbox-cb3-2xlr-3f/

Stereo Windshield size calculator: