Sue ~
I concur with the consensus that a person with bi-lateral hearing cannot realistically simulate being SSD - but I can understand why you wished to attempt doing so.
I've been SSD for over 5 years (since before my AN diagnosis) and I hear perfectly normally - in one ear. The further away a sound is from my 'good' ear - especially someone speaking - the harder it is to hear them. However, one adapts and I simply turn my 'good' ear toward the speaker. I cannot distinguish directionality because sound is picked up by only one ear, making every sound seem to come from my right (hearing) side. My mild tinnitus remains mild and mostly in my hearing ear, just as it did prior to my AN surgery. My voice sounds quite normal to me and, as a former radio announcer, I believe I would notice any difference - even with only one 'good' ear. I'm one of those obdurate types that doesn't see a need to have a BAHA, although that may change, and, of course, I think they're a wonderful help to those who require one. If being SSD seems like it will be a terrible burden for you, I would suggest considering obtaining a BAHA soon after your AN surgery.
Jim