Back around 1980 or 81, I had a Colt with an Enya .15 on it. Fast little plane. Put 2 or 3 pieces of strapping tape on the bottom of the wing and its as strong as needed.
My Colt flew from asphalt and had little tires. This is one of the great Sig airplanes of all time. Take the time and build up the nose, its worth it.
I've had so many Sigs since then, I can't count. I'm building the Bonanza right now.