I took a lesson last night from a local coach and learned some valuable tips. He told me that loft hooks the ball more, which I found to be correct after experimenting later in the night. My Rising Star isn't quite enough ball I need to get to the pocket cleanly on a fresh oil pattern so I found that lofting helped get it there a bit.
You mentioned that I should loft to get the ball further down the lane on dry conditions, are you sure the ball won't grab too much and send it further left?
Basically on dry conditions, should I be rolling the ball with practically zero loft? or stand upright and get it further down the lane?
Loft does not increase hook, its lifting the ball that causes increased hook. Hitting up on the ball causes you to lose momentum going forward, thus the ball hooks earlier because it loses momentum faster. Lofting the ball, correctly (hard to do), is very different. The momentum is still going forward, but the body position is higher so the roll is the same.
It is something that is difficult to learn to do, but once you do its a very valuable tool.
Your coach is not wrong, I think they are just attempting to make sure you do not hit up on it because when most people think loft, they think throw it in the air. Its all a learning curve, what was told to you at first was wrong is then added in later as being right, I believe this is the case.
Until you learn enough fundamentally it is going to be difficult to do without hitting the ball, after you progress you will notice things are added that were originally scaled back or removed.