^I'm sure you've changed a lot more ATF then I have, but I would strongly recommend against ever performing anything other than a drain and refill on any honda/acura model. That means never hooking a machine up to it to perform a flush, no matter the year or the miles.

Honda/Acura automatics are set up differently from all other makes, yes a drain will not get all the fluid out (on some only ~1/3 of the fluid comes out) but it's still not safe to do a flush.

Also, and this may apply differently to some non-Hondas, if the fluid smells burnt or has particles in it, you should drain and refill 3 times in a row. Leaving the old, dirty ATF in there is not the best thing to do, changing it (making sure to use Genuine Honda ATF) will only help prolong the life.