There are a lot of differences and the cockpit size, rear deck as well as front deck all play into it. We suggest a little direct look at each and think abut the uses, access from inside the boat to the outside, cockpit access over gunnels, front deck needs and rear deck. There are a lot of differences and of course performance is one of those. Kevin short spent time in both a Yar-Craft and a Brand X 620 recently, he was impressed by the difference and while we would not elaborate the differences are similar in ride on bass model comparison.