Yep. The bowl of tobacco, once asmolder, will have a top layer of burnt tobacco (ash), a layer of smoldering tobacco (that's what you're smoking), and a layer still awaiting its turn. All it takes to "tamp" and keep the home fire burning is the lightest pressure to compress the first layer to the second. Just a very, very light touch is plenty. I don't dump any ash, though that may simply be due to my tobacco preferences. Outside on a breezy day you may find that your pipe can continue smoldering and building an ash column all the way to the bottom. You can relight a pipe with no trouble even though the ash column is deep, which may call into question the need to tamp a properly packed pipe at all. (Excepting the first tamp which readies the tobacco and smolder for what is yet to come.) Beware tamping in a vain attempt to coax a good smoke from a poorly packed pipe. And finally, some pipe smoking vets will maintain a good supply of ash in the bowl as the smoke comes to an end. Then they will stir the ash and remaining debris in the bowl until it is nicely mixed. They then cover the bowl and shake it vigorously for a few seconds before dumping it. This produces a pipe bowl that is evenly dusted with ash and -- the theory states -- will enhance formation of a thin carbon layer from the bowl's top to bottom, which is what's meant by "break in." At least that's how I understand these matters. You can see why many pipers slip into rigid orthodoxy on pipe maintenance in spite of themselves.