Just looked up what ESC was. A different system than we use in the UK, but probably works out pretty much the same.
Over here in England we adjust all scores to Stableford for handicap purposes. This means that for each hole, the maximum score is the minimum score you would get for 0 points stableford, or in other words, a nett double bogey for that hole - so 3 over par if you have a shot on that hole, or 2 over if you don't.
A few weeks ago I had a 13 on a par 4 with a shot and an 8 on another par 4 with a shot. Shot 79 and made the buffer zone (became 2 7's), so no handicap increase!