Fish Size

Hey,
I'm going to buy a fish for this summer and am wondering about what size I should get. More specifically, whether it should be around 5'10 or 6'0, but also what you guys think for the other dimmensions. I'm 6'0 and 165-170 lbs. As of now, I'm using a 6'4 flyer, but also occasionally use another 6'3 shortboard.
Thanks
I'm going to buy a fish for this summer and am wondering about what size I should get. More specifically, whether it should be around 5'10 or 6'0, but also what you guys think for the other dimmensions. I'm 6'0 and 165-170 lbs. As of now, I'm using a 6'4 flyer, but also occasionally use another 6'3 shortboard.
Thanks