I started out using a Kleen Reem with the pipe dry. When I noticed that the cake was uncentered I stopped with the Kleen Reem.
I currently do not have a pipe knife (but will soon), so I actually used the spoon on my Czech tool and used decent pressure going around the inside of the bowl until I got close to the wall on one side of the bowl. Then, I just kept working around the cake that was still left until it was pretty thin. This was the most work and time consuming.
Then, I used a couple q-tips and wrapped saran wrap around the heads of the Q-tips and plugged the inside of the mortise. I then put a couple wadded up cotton rounds into the bowl and used a syringe without a needle and filled up the chamber with Everclear. I let it soak for around three hours, and then drained the Everclear out and pulled the cotton rounds out of the bowl.. That left what cake that was left in the bowl wet, and I then started using the Kleen Reem again to remove the wet cake. After I removed the last of the wet cake, I took some 600 grit sandpaper wrapped around a dowel rod, and went around the inside of the bowl in circles until I was happy.
I then put more cotton rounds and refilled the bowl with Everclear and let it soak for another day. Drained the pipe again, pulled the saran wrap plug out of the mortise, and started cleaning the inside of the mortise and draft hole. I started with q-tips dipped in the Everclear, then moved on to pipe cleaners dipped in Everclear. I soaked some strong paper towels in water and let the top of the bowl sit on top of the wet paper towels for around an hour and started wiping the cake and crud from the bowl top. Did this probably 8 - 10 times to get it mostly off. The really stuck on stuff, I lightly scrapped with a wet scotch brite pad. Finally got it clean enough for me and started working on the stem.
Stem was not too bad, but had some light chatter and a small amount of crud. I have a set of Micro Mesh sanding pads, and just used those to polish and clean up the stem. Used 1500 thru 12000 grit. Pipe cleaners through the inside of stem with Everclear, the washed it out with water, then cleaned through the stem with pipe cleaners and Dawn powerwash dish spray. Then rinsed it out with water. Then allowed everything to dry.
Last, I use a product from Howard called "Butcher Block Conditioner". I use it to clean and shine up the bowl and wipe down the stem with it, and then just wipe it off. That's pretty much the whole process.