Just purchased Skybolt project and now comparing dimensions with plans. Most everythingseems accurate so far except the horizontal stabilizer. The width of the H. stab is about 2" lessand about 1.5" longer than plans and the elevator was constructed without a mass balance tab. It seems odd that the builder (not available) was so careful everywhere, but messed up the H. stabilizer. Being a newbie, I would like to know if this is a real problem or are such changes considered common options? What is the consequence of a Skybolt without a elevator mass balance tab? thanks