AP1 712 Custom Swingweight Question

For the Fabulous Team Titleist Staff:   What's the max swingweight that can be specified for a custom AP1 712 order in the stock graphite shaft but 1/2" long (assuming std grip)?  Am trying to get up to D4-D5.

You should be able to get to D4. Have you been fitted and did your fitter suggest this swingweight?