I'm a fan. Being made entirely of aluminum and sporting a four-stroke engine, Hummel's Ultra Cruiser has been the target of 103 doubter's scrutiny since its inception. If any airplane maker could be trusted to deliver a true 103 airplane, this is the one. If yours comes out too heavy, then you will have fallen fell prey (like so many of us have) to the "I can build it better" virus. It converts random creativity and good intentions into unnecessary weight. There is no vaccine for the builder, and no known method to reverse the disease once it has infected the aircraft. On another subject, James Wiebe's contributions to light aircraft may not be his tinfoil and foam fliers - but the innovative instruments he developed. Google Belite Radiant instruments. A full panel weighs less than a conventional altimeter - and they don't care if the panel is vibrating all the time. Good luck! Stick with the plans. It will be a beauty.