Dales advice is great (same gear going up as going down). I don't have Jakes and never had a single problem out west last summer. Actually, hardly used the brakes at all on most decents. When I did, I used the stab method to drop ~5 mph usually for a switchback corner or to keep the engine below redline.

As a side note - I have a manual transmission and not an automatic - but I suspect the above would apply based the other comments.

Be safe and Have fun!