Spine angle?

[samburk]

I've had trouble recently taking up a big divot a long way (and I mean a long way) before the ball that points miles to the right. I increased my spine angle at address as to try and make my swing plane more upright and just like that the problem was gone. My question is though could a flat swing plane really mean such terrible results? I am still worried that this cannot be the entire reason behind the problem and there must be something else wrong as well.

Thanks

Sam