Chris, I thought I would step in here for a minute, and add my input to the conversation re: the Brodak Smoothie.
I am the person who drew up the plans for Brodak's version. Bob Palmer and I spent hours on the phone going over details so the plans could be as true to his original as possible. Bob sent me his original drawings, hand drawn on butcher paper to use, so I could get it right. I returned the originals to Bob when I finished the new plans, but did make a copy for my own archives. I'm sure that the originals are in the possession of the owner of Bob's estate.
Just to clarify exactly what airfoil is used on the Brodak version, NACA 0018, but that doesn't include the flap legnth in the calculation, so it's more like 0016. NACA 4 digit airfoils were used on most of his other designs, and it wouldn't be a stretch that he would use it on the Smoothie.
He relayed this information to me personally during one of our many phone conversations.
When the Smoothie was first conceived, he wanted a plane that would handle wind and turbulence. So, since he worked at Lockheed, he went to the Design Dept. and asked them what would be a good airfoil for that purpose. They told him that the airfoil they were using on the stab of a new plane they were working on would probably do the job. It was the Herky Bird's stab airfoil that was used for the first Smoothie.
He built and finished the new plane. He found that it did handle wind and turbulence well, but in normal air, it didn't have the qualities, esp. in the turn, that he wanted, so he built and finished another, using his more normal 4 digit airfoil. This second plane was the one he preferred.
Bob apparently always looking for an edge, finished up the second plane in an identical color and trim scheme. He told me that when he went to a contest, he had both planes in his trunk. If it was windy, out came the thin winged first version. If it was normal conditions he would use the second version, as it handled better in normal conditions.
He also told me a little about what happened and why the first version was the one published, and kitted.
He was on a trip, out of the country, if I remember correctly, and Henry (Heco, or later Veco) sent off the wrong plan to the publisher. Bob wanted the second version to be published and kitted, Henry kitted the first version, apparently, I am assuming, so the kit and published plans would match.
This was all told to me personally by Mr. Palmer himself. I believe it can't get much better than that.
Both version 1 and 2 should be OT legal, in all PAMPA OT contests.
