Hopefully you didn't take my comment about rated hp numbers the wrong way. Both are strong engines, well designed and built. DA has had their 100 on the market longer than the 115 has been out, so DA is the winner in the age and quantity departments. Until recently the DA and 3W 100's were the standards that power was based upon. The 115 is now the king of the hill in power levels and light wieghts, but I don't buy into ANY manufacturer's hp ratings.