Don't think he was implying the brakes have something to do with the tranny, but if not using the brakes how will this impact the tranny, meaning the weight of the vehicle will be on the tranny instead of the brakes - this is not ideal.

Not sure what your issue is with the pulsing brakes, unless your parking brake is not fully disengaging when you release it. Regardless, it is better to put the weight of the vehicle on the brakes than it is the tranny. Here is typically how I park mine on a hill:

1.) Stop the vehicle where you are going to park it, leaving it in gear and keeping foot on brake
2.) Engage parking brake
3.) Release foot brake
4.) Press foot brake again and place vehicle in Park
5.) Turn it off

The order you disengage should not matter bc the weight of the vehicle is on the brakes, so you won't get that disturbing "thunk" when trying to put it back in gear like it does when the weight is on the tranny.

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2001 X5 3.0i (PP/WP/AP) Traded at 213K miles
RARE White on Black - Why does everyone get Tan??
First E53 with 215s on XOutpost!!