There is lots of talk and myth about meers that flies around these sites. Some with merit and some without. I smoke predominately meers and clays. I smoke them everyday, at home and out and about. Meers are not as fragile as some make them out to be, most are hearty and can be smoked like a freight train on fire. When I go on my fishing or hunting trips I will smoke 5 to 6 bowls a day from the same pipe for a few days on end. I'll wipe out the bowl with a paper towel or rag and I'll run a cleaner down the stem every couple of bowls. When cake starts to build, and cake will build even with wiping just much slower, I will carefully shave the cake out using the small blade on my trusty swiss army knife. Yes I have broken a meer when I dropped it, but I have also broken briars and clays the same way.
For cleaning I will clean my stems the same way as I clean my briar stems, a pipe cleaner dipped in strong rum. Sometimes I will use a stem brush for really dirty times. I CAREFULLY scrap out any cake using a small sharp knife instead of a reamer as I get better control with the knife. I wax my meers about once a month for the heavily used ones and every so often for the ones that don't get used as much but this is a personal choice as I know several meer smokers that never wax their pipes.
Enjoy your pipe, smoke your pipe, and don't be to afraid of it. The White Goddess is a lot tougher them many give her credit for.