First Board Advice - 7'6 to 6'0 Rusty Dart?

Hey,
I have a question I am wanting to get my first short board I am right now riding a 7'6 and I ride it good I was thinking I should get a 6'0 Rusty Dwart should I get it or should i get a different board for my first sort board?
I have a question I am wanting to get my first short board I am right now riding a 7'6 and I ride it good I was thinking I should get a 6'0 Rusty Dwart should I get it or should i get a different board for my first sort board?