[joachim]

another way :
iZotope RX2 , Spectral Repair , Attenuate Mode , Vertical(!) : the SSS-area is easy to identify -> select -> repair -> render
(can be made for multiple SSS´s in a sentence)

or :
EQ, automate a tight notch-down in the SSS-area,
after that, make a ramp-in and ramp-out with "X" with the track view set to gain of the frequency band (so that it ramps in shortly prior the SSS and shortly thereafter)
(possibly not only in the 6-7 kHz region, but additionally in the 2.5 kHz region)

what is bad about automating bypass : no ramps can be constructed, so your bypass might effect other non-SSS-vowels directly in front/behind the SSS