I've brewed with the bag in the basket for 2 years now and my next brew day will be without the basket and probably forever.The reason, the difference in the temp between the outside of the basket and the grain in the bag was 12 degs and that's major and correct measured with my Inkbird probe.I can only assume between the basket and bag there not enough flow. My last batch was at 154 outside the bag and 142 inside the grain with the lid on by the end of the 60 minute mash.It started out the same obviously with an empty pot and got progressively lower through out the mash using a electric setup with a pid controller and the lid on...I'm giving up on the basket.