I flew the SW-4 in Poland several years ago, and had some very long talks with the Polish engineers about things that needed to be fixed in order to sell it in the West. I never did hear if they fixed them- things like the throttle in the roof was going to be a non-starter for anyone doing training in the machine. I also noticed that there was no lateral baffles in the fuel tanks - when you rolled into a turn, several seconds later the nose would slice out of the turn.
And the certification was by no means complete - autorotations had not been completed at 7,000' DA from what I could see.
An update would be appreciated.