I hope to complete my 7A within the next year and order the engine and prop sometime this summer during Airventure since they always offer discounts. I will be installing the 0-320 160hp. My wife and I have decided to leave the great icebox midwest and move to Az. and looking at the elevations throughout the state makes it seem like a constant speed prop is a must. Any thoughts on the topic from the western folks? I like the simplicity of a fixed pitch metal prop but it only seems practical in the flat midwest.