Jaclyn, that's interesting. We are saving for a Co-Motion Robusta (AL bike) with carbon fork etc. The general consensus amoungst tandemers is that Santanas are built for touring/stable feeling riding and the Co-Motion frame shapes are more speed/race driven.

Shame about the fit of your Santana. Yes its easier to make a slightly smaller stoker compartment fit than a bigger one. We are riding a M/S Trek even though we have both the same leg length. The Thudbuster seat post enables me to get the height I need while my shorter arms are happy with the shorter length. I also put on bullhorn bars so I can stretch out itf I want to.

We also put a carbon fork on the Trek and that made a big difference taking off 1kg (you might want to look at that as an ungrade for your Santana if it doesn't have one already) and really reduced the road buzz.

We are also saving for a trip to the USA to look at bikes- Downunder is pretty poor for tandems- you normally have to order them in and there's no trying out unless you know some people with a tandem you can test ride. So very jealous that you guys get to see and try tandems in the flesh rather than looking at catalogues or the net.