I'm totally different on my boat.
I totally ignore the telltales when setting mast rotation and just adjust my mast rotation to get my leech to stand-up/fall-off properly. Mast rotation has a huge effect on this. I'm more geared to get proper twist and getting the flow to detach properly from the leech. If I don't do this then my boat "hangs-up".
I tend to control the leach with the mainsheet tension and downhaul. Mast rotation I only use to induce twist when I am overpowered and have maxed out the downhaul.
