Hello Stan!
Your weighting results don't make sense

..but there are other things to consider...I built a set of the regular (no wts.) power play (3-pw) about 5 weeks ago...3 rounds, 5 range sessions under my belt...reshafted 'em once already, now have KBS tour stiff...
The major difference between these little hybrids and an iron...they are not flat faced...the hybrids have face bulge just like a driver...and to be honest, I haven't figured the short irons yet...
https://encrypted-tbn0.google.com/images?q=tbn:ANd9GcQ5hyV1q1MqX3jY9TpzA9Or-hGa5UWjTbbjRmZZZKg3Tm8wHZQ9