peck, hell when you take your teeth out and gum your stems of course they are all going to feel the same, try smoking with your teeth in.
lqjones, definitely get yourself a stem made of high quality german vulcanite, you will be amazed at how maintenance free they are. Acrylic is obviously the easiest to take care of but I find it to be very uncomfortable for clenching as my old teeth just do not get a good grip on hit.