Hey there, today I went to visit Carey and get the new 5Jst. It is too early for an evalution, but the pups sound good. They took the place of the original one in my Sadowsky MS5. The Sads are very good sounding pups, but kinda scooped, very clean, tho! The 5Jst have more midrange presence and warmth..... I have a lot of work coming up, so I'll let you know what are my thoughts, later! Have a bright life Mo'