Turkey Choke Recommendations

[retrieverman]

I've got a Beretta 686 Onyx 20 ga and am wanting rig it up as another option for turkey hunting. 
From searching on here, Indian Creek seems to be popular for 20 ga, but at this point, I'm open to all suggestions.
Do y'all shooting double barrels do different constrictions or both the same?
I've killed a few turkeys but am still a newbie.  I appreciate any help you can pass along.