I'm guessing that you're shooting the safety version of the SP-01. If that's the case, how comfortable is the safety to ride while shooting? The levers don't look very friendly to the practice, or are they up and out of the way enough that you can flip and forget? If the latter, how easy/awkward is it to get them on the draw, and to reapply before movement or re-holster?
If you've got the decocker model (Tactical, I think), what do you think of the placement and ease of use?