Just wanted to brag on EI a little. I just drained and refilled my C-182 tanks for the third time since installing my much loved MVP-50. All three times I have measured the fuel back in, 5 gallons at a time, and then gauged it with my dip tube and checked the MVP-50 reading. I don't know how it does it, but the MVP shows almost exactly correct from the first 5 gallons on. I’m using the original 1964 factory sending units.
After a life of never having an accurate reading on a Cessna fuel gauge, I'm calling this a miracle of the highest order.