Rick,
He has tanks in the wing ends, I forget the added amount, but I saw it with the tips off and they are cylinders that fit between the rib holes (if I am getting that right).
I went with him to a Grumman fly-out in my 150 (which meant I was the whipping boy for fun) but I came to like them after that.
Side note:
It was at this flyout I had a long discussion of Sensenich versus Mcauley with Ken. If I had the dough he made a good case.
