910 swing weight change

I'm looking for what head weight should be installed on a D3 for a Fujikura Morter speeder VC 7.2 tour spec.  X-stiff?  I'm looking to fine tune my swing and i know i can change the weights to find whats best for me but just looking for a recommended base line.

thanks greens and fairways to all

Simba

i dont know if this got buried over the weekend but any help from Titleist. 

We show that if you use a 5 gram weight with that shaft, it will be about D3-D3.5 swingweight .

Cathi @TeamTitleist
1-888-TITLEIST

thanks cathi that is what i was waiting for.