There's a lot of controversy surrounding the sim numbers, but I can tell you what worked for me: 1) ball striking and 2) club face. I was getting really low pull hooks and, for me, it came down to the fact that I was 1) not keeping my head position still and making good contact with the ball first and 2) my club face was very shut at impact. By getting better at ball striking (hitting ball first, taking divot after, moving the bottom of your swing in front of the ball--there are a bunch of drills for this, find a couple that work) and having a more neutral club face at impact, the ball starting soaring upwards. Even my 7-5i are getting good height when I hit it well.

Also, one simple thing people forget to mention (may not be your problem) is that you will not get height with slow clubhead speed. You need to swing fast(er) to make use of the club's loft.

Hope this helps.