If I were to go with custom stem route (which I'm considering), do any of you experienced tandem folks have a view of the purpose of the generally steep rise on stoker stems?
Assuming there's enough captain post, is there any shortcoming of having a stem with minimal rise that gets to the right end point for stoker bars (c-c measurement)?
Assuming the clamp is appropriately sized to distribute the load, would the strain on the captain seatpost be any more than a typical stoker stem with a 35 degree rise?