Google search will produce the Mangiamelli treatise. Some now have
planer-like capability, sort of a ring tool with a depth-limiter.
Learning curve a bit different there than simple scrape, though both will
certainly work. Remember, downhill rule still gives best results when
cutting.

I use a pointy gouge to do the initial and as much of the interior as the
design will permit, size depending on the neck opening. This makes waste
removal easier, as shavings run down the flute of the gouge. Take a look at
Wood Central's grind library for David Ellsworth's detail gouge grind.
Looks similar to what I've settled on. The continuous curve, versus bevel,
makes it possible to take as light or heavy a shaving as you care to without
an abrupt bevel-jumping grab. Even the scrapers work better once there's
room in there so they don't jam.

Narrow bits for gross work and broad scrapers for smoothing - I've the big
Sorby "Hooker" tool and the Stewart small - seem a good way to go if you
don't have a ring. They produce a worse surface, but up/downhill make less
difference in jamming and grabbing.

"william kossack" wrote in message
news:9HSHc.54410$IQ4.51811@attbi_s02...
I've got one of the curved necked hollowing tools that I would describe
more as a fancy curved necked scraper by sorby that I've never been
satisfied with.

I've heard other hollowing tools mentioned from time to time but I'm not
sure if any of them are any good either.

any suggestions?