When I feel this flare coming on, like when it is cold out (under 50 degrees) I press the overdrive cancel button and leave it off unless i am on the freeway. It seems to eliminate the flare. It used to be worse, but has gne away over time. I changed the tranny fluid once at 50k miles. I just keep my fingers crossed.
I tow a 4000lb trailer 10 weekends a year and drive some serious hills, so with 77k miles on the transmission, i am not totally disappointed.