I have a GOSM Big Block smoker. For Thanksgiving I plan to smoke two 12 pound turkeys and have a few questions for other GOSM owners. I will start the Big Block off at 275F since that is as high as my Block Block will go when chilly outside. I will inject the turkeys and use pecan wood for smoking. 1. Should I keep the Big Block at 275F the whole time? 2. If kept at 275F the whole time then how long can I expect it will take to cook the two birds? 3. If the smoker temperature should be lower then what should it be? 4. At the lower temperature about how long will it take to cook the birds? Thanks in advance for your comments and advise.