I always deliver stacked if I can as I hate being watched whilst I work and there’s always someone at the venue hanging around… I would follow the advice of using a central dowel. I delivered this 4 tier into central London (60 miles) stacked (there was no other way due to the design) and we all arrived unscathed (although I think I aged a little!). Use plenty of dowels and thick royal icing between the tiers to really stick them together and give it at least 24 hours to set fully.
CakeyCake, http://www.facebook.com/ChildsCakeyCake
