VVega
Assistant Pro
Looks like Golfshot mixed your course up with the other one, so just email them the photo of your card and they'd adjust it.Found a photo of the card for this course online. Its 18 lengths is just over 5,000yds from the tips, yet was showing its SSS as 70. Pretty sure that the club has not bothered to affiliate with the Lincs Golf Union and therefore has no official slope or CR. Can only assume that Golfshot has made one up. What seems strange though is the figures the OP gave for Slope and CR would result in a much higher handicap than before.