We hunted merriams in central South Dakota several years ago at the Cheyenne River and Standing Rock reservations. Both reservations had rivers running through them and all of the turkeys roosted there where the tallest trees were. Upon fly down they didn't waste any time leaving since every coyote in the territory knew where they slept. From the river bottom, they would climb up to the mesa tops where they could see for quite a distance. The birds responded to the same calls we use for Easterns and on the third day I filled two tags on the mesa tops.
Here's my point- I'm sure the pine forests are different and the birds can roost just about anywhere. Experience has shown me that whether you know exactly where they roost or it's a crapshoot, you need to find out where they want to go. Usually a food source first and later in the morning preferred loafing and strutting areas. In wooded areas, birds like old logging roads and logging decks (flat benches were logs were once loaded), where they have a little visibilty.
Whether hunting turkeys in the fields of Michigan, the timber of Missouri or the hills of South Dakota, I did not notice a difference in the turkey's dialect or a need for stylized calling. My extensive hunting video collection seems to bear this out as well.
Hope this is helpful. I'm sure someone will come along who has hunted the pine forests of the Black Hills that can offer more insight.
"The joy of living is his, who has the heart to demand it." Teddy Roosevelt