Actually somebody posted a while back about the bike actually running cooler with the lowers in using, dare i say it, actual temp reading with the infer-red thermometer iirc. I have had my 14 sg with lowers on since day one of ownership. Rode across the country on it, 5400 miles in 9 days, with no issues at all other then rain 4 out of 5 days. When it rains I closed the lowers but otherwise i roll with them open unless its cold out. It will be fine. Enjoy it and dont over think it.
Bike runs cooler with lowers for me. Installed them about 6 months ago. Love them. the added storage is nice, bike runs cooler, looks better, and rain protection is better.
my air vents are always open unless raining or below 40. then I close them for my comfort.