Shure SM81 vs KSMxxx

[tkingen]

I'm in the market for an additional SD condensor. I currently have a pair of Okatava MC012's and a Neumann KM184. Also, a Shure KSM32, which i guess would be considered medium diaphragm(3/4").
The SM81's and KSM109, 137 or 141 look interesting. Anyone been able to do a direct comparison between these?

Thanks in advance.

Terry