Neep - No, you're not being too cautious. That exact phenomena kept me from using a nice, but flexible full hollow. I was holding the 30 deg. like it was written in stone. Its not. When the brush gets thick, drop that angle pronto. (I'm assuming the edge is worthy) Its intimidating right now, but a few months from now, you'll do it with ease.

At the time, the Mrs. bought me a 1/4 grind (heavier grind), and it was a game changer - just mowed through the heavy timber like it was nothing. Instead of being quite tense, trying to get everything right, it became quite easy. I could try stretches and strokes I wouldn't have dreamed of w/ the flexible hollow. Next thing you know, I could do it w/ the hollow also.

Whether its the edge - maybe post how/who did the edge, the beard prep, the stretch, you'll have it licked soon.

You're gonna do fine.