Balancing heavy aircraft
My large scale aircraft is nearly complete. I've never had problems balancing a model before, but this one presents a little challenge, its heavy. I'm estimating in the neighborhood of 30-35lbs flying weight. The balancing point on the wing does not have any support for say, attaching dowels for string to attach, and balsa sheeting isn't strong enough to support that much weight with out using a strong point. How do people generally balance a heavy model?