I use an LG incubator as well and have hatched both Pheasant and Chukar this year. I have had some problems to maintaining humidity in the LG, but have managed. Sometimes having 2/3 of the water trays full will have it at 45% humidity, and other times has it at 60%. As odd as it seems, having 3/3 full has only got me 50% humidity at most. As for the Chukars, I have had a great hatch rate (38/40 have hatched this year) with using 45% during the first three weeks, and 50%-55% for lockdown. I only had 5/15 Ringnecks hatch for me, not sure what happened with them. Good luck with your hatch!
One other thing Ive noticed with the LGs, is if you put very warm water in when you add some, but not HOT, the incubator seems to maintain a higher humidity for longer periods as well. I also will occassionally take a spray bottle and spray in a little through the vent holes in lockdown and that will bump humidity up pretty well too.