I like featherweights, I like 9mm filter pipes, i like cobs. After some thinking on how to have these interests intertwined in the simplest fashion, I ascertained that what i needed was a MM pride, an 11/32 drill bit and a deft hand. A few moments later I was rewarded with the driest coolest smoke known to man. If you love what I love, give it a whirl... the trick is to get the depth just right, too far and the filter will protrude into the bottom of the bowl, too shallow and you won’t be able to get the pipe bit seated completely. Take it a little at a time. For the tighest fit, drill 1/8” too shallow and cut 1/8” off the pipe bit with a utility knife. Bahbapbapbapbaaah, I’m lovin’ it!