After much research, I purchased a Wilderness Systems Tsunami 145. I paddle both lakes and rivers in Michigan and have been very happy with how the 145 performs. Being 6'-4" and 225 lbs, I'm able to get in and out easily and fit is comfortable. I tried the 140 but it was too small. I wanted a kayak to grow into as I become more experienced and tackle more challenging paddles. It tracks great w/o rudder and is able to keep up with most other kayaks without to much effort.