We have been riding out 2 Ibis Touche tandems the last year and have started to talk about a new tandem to buy. We are thinking about Comotion Speedster and Supremo - were impressed by the Blayleys on the web although they seem to be more interested in alu-tandems: we like crmo tandems. We like that the Ibis are not totally stiff - think that the spirit of tandeming is to handle the softness. Are the Speedster or the Supremo the right new tandems for us? And which one?