Twin little monkeys out about the town

So last summer's flight to and from Wisconsin was pretty much a disaster (well, at least in Dada's words), and since we (he) vowed never to fly again, my words needed to take a while off before writing about being an expert at traveling with twins.  Here's what went wrong and how I think (hope) it should be fixed: 3-1 seating.  We always have sat 3 in one row and Dada across the aisle.  This was fine when we had 1-2 kids in car seats and their legs were too short to do any damage.  No longer awesome - neither kid wanted to be with Mommy, both wanted to sit on Dada's lap.  Both spent a ton of time, especially during takeoff and landing, trying to climb across Mommy and the aisle to get to Dada who was sitting next two two business men on their way to a conference (their fault, not ours...it was open seating after all)  Wishful solution:   put the kids in the back of the plane and Mommy & Dada up front.  Pro...