I am wanting to get my 13 year old son a flat water kayak for his birthday. I own a WS Tsunami 140 that he loves to paddle. He is a growing 5'4" 110lbs we paddle flat water rivers and lakes of North Georgia> I have found some great prices on a Current Designs 120 and a Necky Manitou 13. I am looking for recommendations between these boats. They also have a Tsunami 120 but price is over $200 more (really would have to justify the difference). By the way demo boats are not available.