If you are not using an AMPs (which requires the ventilation), I would regulate the vent to maintain smoke in the box instead of throwing it wide open and complaining about having to reload it continiously.
When preping the smoker, close the vent and run temp to 250/275. Then add the meat, and reduce the box temp to whatever you decide to use for temp. Some say 225, some 250, some are balls to the wall at 275. I do mine at 220 to 250, the size of the bird matters to me also. Larger the bird the slower I cook it. but most folks today stay with a >15 lb. bird so any temp works.
Give it 30 mins to stablize and then insert the chip tray, open the vent. Walk away for 30 mins, the come back and regulate the vent . 1/2 way works fine if you are not familiar with it yet. I usually insert the probe when I add the chip tray.
Prime smoke absorption occurs I am lead to believe from 100 to 140 IT (Internal Temperature). So I add my chips after 30 mins, which allows the box to actually cool down a bit, and the heater will come back on and make smoke later in the cooking cycle. If you cook low, the chips have plenty of time to start to smoke, if you are cooking fast, the heater is going to be cooking continiously, so it works either way.
Everyone is different, this is what most easily works perfectly for me.
Whatever you do, remember to let it rest after reaching temp to redistribute, and Good luck.