I think it would be helpful to know how confident/comfortable you are on cambered boards. What kind of boards have you been riding of the last few years?
If you're sticking with Burton, have you looked at the Landlord? More stable between the feet than the flying V's but with more float than the cambered Custom decks.
The X might be a bit overkill especially if you're riding with kids. The Custom flying V is a ton of fun but didnt hold up for me as well I like at speed, especially in really hard conditions.
I dont think you can go wrong with the Custom/CustomV or Landlord. Comes down to profile preference.