I enter Handicap Scoring at my 'handicap set' for my course on yellow tees. I enter the 'Index' for my handicap. I select 'Stableford'.I play the round and see that my card stableford value is 34 but on the Garmin it is 29. When I look at where the difference is I see that Garmin has given me one less shot against holes with SI of 9 to 13 inclusive, i.e. total 5 less. This represents a handicap of 5 less than I have. I cannot see how to rectify this difference.