No offense, but I wouldn't call a week of stability in your levels "stable". If the tank just finished cycling (I assume you mean ammonia and nitrite are both 0), then you'll still probably go through some algae phases (diatom bloom, cyano, green hair algae, etc) until the system is truly stable.
If you've already been through those blooms, then yes, the tank is probably truly "cycled" and stable. Until then, I would avoid SPS. But, if you've kept SPS before, then I'm sure you know what to expect. How's your Ca, Alk, Mag, pH, phosphate, & nitrate?