my "new" Ronix Bill 2010

So this summer i'm going to be riding a Ronix Bill 2010 board (my cousins 'old' board).

I've only ever ridden cheap beginner boards. Even though i'm a girl I was told the Bill (134) would be my size as i'm 145lbs(that i wear well...ha) and 5'7, is this true?

I was just curious about the board, does anyone ride it? I'm mediocre at best. Never ridden behind a tower, just have a fishing boat.... I get about 2ft of air. Can do some surface tricks. But this year there is a Cable Park opening in my city. And when i'm not at our cottage i was hoping to go to the cable park weekly.

Would you ever take the fins out of the Bill for surface tricks or is it fine with? (read some threads that said it was a loose board) and i have the slider fins... those are just for the cable... never for behind a boat right?

Any other pointers on switching boards would be great. i'm so excited it seems so much lighter and more maneuverable than my last. (the living room floor is the only place i've tested it.)