One note on descent angle to keep in mind is that there are many ways to achieve the same number. For a 6 iron, around 45-48 is close to ideal. You can get there by launching it low with higher spin, or launching it high with lower spin. If you want to work the ball more, going with the lower launch and higher spin would be better in my opinion. If you want a little more 'point and shoot' you could go with higher launch and lower spin. The ball won't move as much with that option. Not saying all work-ability would be taken away, but less spin means less movement both vertically and horizontally.
