I always used a pair of bar ends, the kind that go forward about 4 inches then turn inward about another 4 or so. Then I turned them backward at about 45 degrees, and rest my hands on the upper part. It gets you way further upright, gives more hand positions too. Put them so you can easily quickly drop over them to reach the brakes, in that position, your arms will be just brushing them, to be in the perfect spot. Works great, honest!
Fatten them up with some cork, and get the fattest ones to begin with, for comfort. Answer used to make some perfect ones. I ride a bent now, it rolls down mild trails ok, too.