Hey guys, so I'm an intermediate rider with an old board I bought from my buddy a few years ago and finally ready to buy a board of my own.

My current set up is:
Board - K2 dart limited edition 155cm wide
Bindings - Rome DOD Bindings

I've been riding for about 3 years now and went a lot last year. I can manage way down Black Trails and continuing to get better. I'm looking for something that would be good for the mountain but would also be a good board to start riding terrain park.I started hitting some small jumps last year, (I got about 5 feet of air MAX) and I want to continue learning more terrain park.I think what I ideally want is an entry / intermediate terrain park board that can also be good to ride on the mountain with.

My local shop recommended I check out:
Lib Tech Dynamo
Never Summer Snow Trooper
And I have heard good things about the Never Summer Protosynthesis

For reference, I'm 5'7 and about 165lbs. The old board I have at 155cm was sold to me by my friend who is over 6 foot so I know I need a shorter board.

Which of these boards would be good for what I am looking for?
I am also open to other recommendations, I dont really know what I am doing when it comes to buying boards and I want to learn more so any advice or tips are appreciated!