My hair is mid-butt right now, and I've successfully used Feye's self trim method for the last couple of years. My ideal hemline is a deep U-shape, but today I seem to have trouble achieving it.

Tilting my head forward should in theory make the hair in front hang down further than the rest, so if I trim the ends off straight I should have a deep U-shape (or even a V-shape) when I flip my hair back, right? For some reason I keep ending up with a more or less straight hemline today .

This is so weird, because only a few weeks back I had a self trim work just fine, and I'm beginning to suspect I MUST have done something different.

Thoughts and advice are greatly appreciated...