RE: 52lb thrust PST engine??
The PST engines are really excellent, I still have 2 600Rs and two 1300 rs and the 1600 was a very impressive engine, particularly with the Xicoy ECU which gave very rapid starts and superb throttling.
I guess they will announce it on their site asap but in the meantime Kraiviuth will probably update.
Regards,
David.