I wasn't a beginner when I ate it. That's the point.
I just think the OP needs to figure out whether he plans to play on the jump line all day, or progress his mountain riding. As someone who has ridden both boards, and 20+ others, I'd push this guy away from the Proto, and toward a directional twin.
The Proto is a freestyle the mountain board, and a great jump line board, but if the poster wanted a board he'd be able to back bowls, steeps, and ride more aggressively at speed, I don't know why the push wouldn't be a directional twin.
Want a Never Summer? Fine, an SL. Want a Lib Tech, fine, a TRS. A Proto for me is someone who has decided they are riding switch from Day 1, spinning, and using the whole moutain as a park. For a beginner, who is learning to get confident carving at speed, learning to jump, and wanting to handle steeps, why not a directional twin?
This from someone who prefers true twins and rode a T Rice and Ultra Fear last year. I evolved to liking that over 4 years of riding. But I have plenty of Friends who went the Raptor or Highlife direction as well, who decided they could give a shit about the park.
Therefore, do yourself a favor. If you are going to be riding mostly regular (or maybe you're goofy), and plan to do this 90% of the time, get yourself a directional twin, allowing the freedom to explore freestyle, but the setback to enjoy directional riding and carving at it's finest.