I suffer the old tongue issue a fair bit. I've spearmint loaded at the moment but it tastes bland, almost like the atomiser needs changing but I've various flavours and atomisers and it's all bland.
The taste buds seem to pop back but at least my old cigars still taste good data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Have you tried changing the wattage, start low and build it up, somewhere along the way you'll find the best spot for flavour...