There are a thousand posts on here about LG and the problems with them. If you can get it to stay 100 you are doing better rhan most. What thermometer are you using? I had 3 diff. ones all made by LG. Throw them away!!!!!!!!!!!!!! All 3 WRONG!!!!! I got a hygro/thermometer wireless for $25 at lowes. You can get them cheaper. I just liked the one I got. Mine fluctuated from 99.2-101.1 As long as its as close to 100 as possible your good. Search the posts and threads about LG. Its ok. But not any place close to trustworthy. Expect temp spikes! mine would spike to 102.... but it only last a lil while. not long enough to cause damage. Just monitor it. try not to keep adjusting. Its just too hard. Try to use the plugs for minor adjustments. Mine did ok. It lasted long enough to find a better one. You will get alot of advice all over the spectrum. Most against the LG. Mine just took alot of trial and error. minor changes. adding tubs of water. removing or adding plugs. super minor nob adjustments. Give it atleast 1 hour between adjustments for everything to come to temp, befor checking. This is just what I had to do. I had 14 of 16 hatch.
Good Luck and God Bless!!!