I promised to post video of Peter giving instruction on carving a seat during the class we had back in May. As you’ll see, it all starts with the adze. Peter and Tim Manney collaborated to develop an adze specifically for carving seats (although it would also work just fine for bowls, etc.). I highly recommend it. I already owned an old school adze, but after giving Tim’s a go I had to have one. It is so light and effective. I don’t think his wait list is super long right now so if you need one it might be a good time to contact him.
Anyway, Peter does a nice job of explaining the function and use of an adze in this video. Enjoy!