well, i guess i'll just have to wait for the stuffs to get to H.K., then i'll tell you if it's working or not. btw, glad you like the SP Silverarrow
i think the SP products are pretty good, maybe not the best. cause i got 2 set of the Inspire(BL ESC+BL Motor) one with Sport Tune BL Motor, and the other with Crawler Master S BL Motor. they both do work pretty good