Since the recurring payment is for each item and a different recurring profile is created for each item, but the shipping is for the entire cart, adding the shipping into the recurring payment is problematic.
We could probably do something to account for it in a premier ticket. We would have to calculate the shipping cost for each row in the cart separately and then create the recurring profile with the shipping added for each row. The totals of the recurring shipping may not be the same as the shipping charged for the first order.
For instance if I had two items in my cart... crickets weekly and meal worms monthly and each weigh 1lb... The shipping for the order would be for one 2 lb package, but when the recurring payment is processed it would have to be for individual 1lb packages which would have a different rate. It is that complexity that would require a premier ticket.