I was asked to post pictures of the scraper I used in making my manzanita bowl.
So here it is. It is just a large bowl scraper from WoodRiver. But I ground a small "negative rake" on the top edge. It is supposed to be roughly 10-15 degrees. This allows the top/cutting edge to be down-sloped like it is supposed to be without having to tilt the whole tool, which is hard inside a bowl. It also lets you "ride the bevel" and still have the cutting edge in a trailing position.
I tried to measure the angle of mine but no joy. Looking at the pictures it seems that my angle is too shallow. But it worked great on my bowl.
http://sawmillcreek.org/showpost.php...94&postcount=3
I hope this helps someone.