I have never heard of this strain and a search didn't turn up anything---where did you run into it? And who did you get it from that told you it was something called "Jack's Surprize"?
I wass reading bout the strain recently and as i recall ? it was the father side of the strain. Forget the mother side of jacks cleaner < same ?> . Check mjp as thats where i was rweading the article. i bielieve.