@JonAHupp Let that 36 gain run for a few sunny days (not many GA aircraft in poor weather) and then compare to running with 978 gain at around 25.4 for a few days. (That was my UAT sweet spot prior to adding an LNA).
Once you have graphs1090 installed for a couple days, look at where the minimum signal level graph bottoms out. For UAT, around -30 is usually good for most stations. Don’t be too quick to judge a setting. The volume of UAT aircraft is pretty low for most locations.