I have a guy who has a Cannondale road tandem for sale. He wants $1000 for it, it's an older model since it has a drum brake. I told him that I had concerns about my wife fitting since we are a 5'10" and 5'11" team. He told me it's super adjustable blah blah etc. Is this BS? Our current bike a Burley RocknRoll feels a little short on the reach to the bars for the stoker. Does anyone have a tall stoker, what is the reach? How can I tell if I am looking at a M/S frame or a Large/Large are they marked? Would a seat post with a little lay-back be a cure?

Thanks,

Craig