The windcap Embers posted would have been my recommendation as well. It's not so great as a windcap, but effectively keeps the chamber contents from spilling out in your pocket.
To the OP: I nearly always pre-pack anymore, particularly coins, flake, or sliced plug, by a day or three sometimes. Though I like to dry things out pretty well before stuffing, pre-packing gives the tobacco on top a chance to dry out even more for an easy light.
To the OP: I nearly always pre-pack anymore, particularly coins, flake, or sliced plug, by a day or three sometimes. Though I like to dry things out pretty well before stuffing, pre-packing gives the tobacco on top a chance to dry out even more for an easy light.