I posted this to another thread but since this one is more recently active (and related) I will try again. I have 4.5 year old twins and am looking for a solution for longer rides. Mostly likely I am going to buy an Adams Tandem Tag-Along, BUT....
I have also been considering having a custom seatpost made that would have a "t" perpendicular to the axis of the bike and posts on each side to which I could attach tag-alongs. This way i would have my kids riding side-by-side (because what is a family ride without being able to reach out and punch brother at random moments?) but still being able to pedal independently. I am most worried about the width i would need but it may not take up more of the bike lane than, say, a Burley. Alternately i was thinking about the modified post extend one side behind a bit, so the tag a longs would be a bit staggered and able to fit in a narrower lane.
Is this a stupid idea or genius?