I bought an SPO1 and like the wonderful piece of machinery it is. I did however not like the trigger.
I sent it to CZ Custom for a SAO conversion. It is transformed and shooting to my liking now.
I did this after reading about the conversion. The shop "installed" a new trigger and hammer. I see they also did some polishing on bits in the action.
This was worth the price [and shipping, ouch].
I can report there is more creep in the break than I would have expected. This is minimal compared to the duty type trigger it came with. I may at some point ask about addressing this but the pistol makes it easy to hit with now, and holds a lot of rounds.