High line or bottom turn...

So just wondering what it is that you guys see or feel on take off that cues you to go for a bottom turn or to take a high line for speed?
I've been working on both techniques and whilst my turns are really scrappy I think the major problem is how I read the wave I'm kind of deciding to turn before I even take off rather than letting wave lead the decision.
I was out last week having a good session on fairly slow rolling rights and trying to keep a high line and ride as long as possible. There was a really good long boarder out with me and she was taking a really different approach dropping straight into a bottom turn. Made me wonder if she was just that much better that her process is way beyond what I'm trying to do, or was I taking wrong option for how to ride that wave?
I've been working on both techniques and whilst my turns are really scrappy I think the major problem is how I read the wave I'm kind of deciding to turn before I even take off rather than letting wave lead the decision.
I was out last week having a good session on fairly slow rolling rights and trying to keep a high line and ride as long as possible. There was a really good long boarder out with me and she was taking a really different approach dropping straight into a bottom turn. Made me wonder if she was just that much better that her process is way beyond what I'm trying to do, or was I taking wrong option for how to ride that wave?