I know you can post 9 hole rounds, easy enough; but is it legitimate play two separate balls at the same time AND post the score to my handicap?  I play occassionally after work and only have a couple of hours.  Not enough to walk 18 but it is enough to play two separate balls on 9 holes.  I mark the balls differently and make sure that I am keeping the correct score for each ball.  Maybe it is the benefit of getting the speed or in some cases the break of the green but something about it seems not quite right.  Thanks