I may well have fished more warts in tree tops than anyone on this forum. The reasons are: the wart is my favorite walleye trolling bait, I troll for walleye quite often, I run 10/2 braid to troll, warts with 250 feet of 10/2 braid will run 25 to 26 feet deep, and walleye frequently suspend in brush and tree tops. Warts have a great advantage in those situations -> they hang up far less often than any other deep diver I troll. Something about the design and hook position causes them to deflect or flip over limbs more often than not.
While I don't write about it often, I normally catch as many or more bass than walleye using the trolled wart. I tend not to report this because when I fish bass, I count and report bass; when I fish walleye, I count and report walleye. My largest TR bass (almost 24 inches and very fat, close to 9 pounds) came while trolling a wart in the trees on the bluff where the Kings River flows into the White.
One of trhe applications for the new Rockcrawler (if it resmbles the wart in avoiding hangs) will be to fish the numerous tree tops that exist 10 to 20 feet below normal pool (and there are many).