Sasquatch.
I don't know why really.
I want to experiment with nipples and try some different things but I been really focusing on trying to get the flute centered more than anything.
I try not to grind the actual corner but I do grind the whole nipple edge real good.
I see what you're saying about easier detachment and more length, and I been thinking of ways to make improvements, I just aint done it yet, but I'm getting more comfortable fluting and plan to try some different things when fluting soon.
Here's one I made at work today from a thick flake.
The first flute went great but the second one was short, so I flaked off that entire side of the point and rmoved the short flute to try again, but I got the same short size flute again on the second attempt.