I think I'd prefer a system where you put a card in everytime you play. The problem in the UK is that there are a lot of false handicaps because people are not submitting cards more than they have to(and sometimes not even then). I played with a guy the other week who was off 18 and shot 5 over! To be fair it was a 36 hole comp and he shot 98 in the afternoon. probably thought he'd better reign it in after all the grief he got at lunchtime :)
Are you saying he purposely played worse to "reign" in his overall score to comply with his handicap in the afternoon?