palisades and summit are great for flavor, aroma, or dry hop additions. i've had good luck with ahtanum as a flavor addition.
i'd probably go with a 60 min summit, then
like 2-3 oz of palisades and ahtanum at 15 min
2-3 oz of palisades and ahtanum mix at 10
an ounce or two of summit at 5
and...