for my two cents worth!..have jumped icarus, EZ, Sets, hops and now sigmas...of all I now prefer the sigma ..only since I added 5" to the brake line lowers to put the effort point lower in the flare stroke, have found doing many tandems in a day a whole heap easier..and flaring smoother and more controlled...thus now because of the ability in turbulence and overall flying performance sigma gets my vote.. thank you