TW has an excellent written & video review of both racquets on its site.
If you think you need to have superhuman powers to handle the ps90, then don't be afraid. Us mere mortals can handle it. You could always remove the leather grip and it's not that heavy.
I think if people would just demo it, they would be positively surprised at how playable it is.
My backpack: blx ps 6.1 90 & blx ps 6.0 85