That looks really nice. I am going to have to remember black strap when I am brewing. I can see what that would lend to a pumpkin brew.
I tested a bottle of pumpkin ale we made this weekend from an ale kit and roast pumpkin. I have never opened a beer that blew the clamp of a grolsch style bottle. The flip top clamp flew across the kitchen and half the bottle fountained out. Luckily that was from a one gallon test batch. We are cutting back the priming sugar for the remaining five gallons.
1 gallon pomegranate/mint melamel
5.5 gallon pomegranate melamel
6 gallon pumpkin ale