Thanks to one and all for your helpful advice. After reading each reply, we have decided to stick with the technique that we used as a recumbent team and which was successful yesterday. My stoker noted that this technique allows her a 'butt break' during each stop which she appreciates very much.
We hope to move on up from our KHS to a RANS Screamer by next Summer - our 'butt break' days will be over!
With ten years of tandem riding under our belts and five years of 'bent riding by me, I hope to find that the transition to a 'bent tandem will be fairly smooth.
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Bacchetta Giro A20, RANS V-Rex, RANS Screamer