I'm very pleased with our ATOC. We have a low car, but I did at first use the pivoting fork mount. I found it easier to just lift the tandem up, put the rear wheel in the tray, fork in the fork mount and (!)done. If I had a taller car I'd probably carry a step stool.

Were I buying a rack again I might look at the draftmaster since a tandem fully in the slipstream really causes the mileage to drop - from 42 to about 32 at75 mph. I'd assume a Draftmaster doesn't take such a big bite out of mileage.