There is a much more interesting article in the latest issue of R/C Driver (IIRC) which address the response time issue. The story goes that early on in the design they used one method of frequency control that had poor repsonse time. After which, they began using a faster method which has much faster response time than that of current transmitters (as quoted prior about the M8). I'd be guessing that the team drivers had early units that were slow????