Welcome aboard leftcoaster
Many people have problems with adjusting their levels for tanks. The coach I have the system is of Newmars design. Have not had a problem with three Newmars I have owned. Newmar seems to make operational items fairly simple. This can't be said for other MFG'S.
RV. Upgrades on this site has one that some people have changed out and are very happy with it, it is a digital unit.
Let us know how you make out with your survey, and if you find a motorhome come back and join us.