I built a large guy 6'1" and 320ish lbs a set of 36spoke son rhino lights with DT butted spokes, brass nipples. He rode 3k miles the first year and a couple thousand more each year over the next several and the wheels took 4 years before they needed the first truing so I'm going to guess it's a high load. For my own touring bike I used Velocity Dyads which are lighter then the Suns but not light and built it with 32 Wheelsmith HD 13/14g single butted spokes. I weigh 270lbs and carry a 35lb load with a 26lb bike. Only done one year on them but they haven't needed a truing either.