Alfdoc, If I ever get my WP pulley you can try out my Aero with the 181mm pulley. I think that is the best size for power and leave a good margin on the SC rpm's.
The SC pulley looks pretty good and is close to the 178mm crank pulley from what folks are saying so far. Maybe I should put that on my stock SSB. Nobody would be able to tell the difference looking at it.

MikeR