Hello all, I'm brand new to the forum (will be sure to fill out roll call) and also brand new to smoking. I've been learning all kinds of things from this forum before I bought my smoker and since. Only got one smoke under my belt and that was burgers for lunch today. They turned out awesome couldn't be happier with them. I have a question about my some thermometer problems. I have an Oklahoma Joe's Highland with some mods done. Gasket on doors, sealant joing fire box, raised charcoal grate, lowed smoke stack, and cheap cookie sheet baffle. When doing my burgers today I was getting many different temps. I was using lump charcoal with apple wood and shooting for 225. My master forge digital was in the middle in a potato with plenty of the tip sticking out. I had dial oven therms on the left and right plus the one in the lid. Now I know the lid one is cheap and doesn't give temp at meat level but here is my problem. The digital at grate level was reading 270, the oven one on the left would read 225 and the one on the right 230. My baffle and water pan seam to work well. but I can't figure out why the large difference between the digital and two seperate oven thermometers. Plus while the lid one shouldn't be trusted I do know it should read the highest since heat rises but it was reading 250. The worst thing is after reading this I know it sounds like everything is working but the digital but, I both ice water tested,about 6 degrees high, and boil tested, right on the money, the digital so I have no idea. I can't test the oven ones cause they can't be submerged. Is it really possible that all 3 of the other therms are off? Thanks for your help. Will add additional info if needed.