honda does not recommend this as far as i know(i have heard from other members on this board and that is why the owners manual decribes the drain/refill method). that tansmission is very sensitive, i know that this model year has many issues with the automatic transmission, so just as a precaution don't power flush. as long as you drain/refill it should be fine. if you do it often, every 20-25,000 miles like buster133 does, there should not be a need for power flush.

btw, on a whole honda auto transmissions suck as far a reliablility when they age because some owners do not service them properly(change fluid enough).