Herebrooks said:
Windsor chairmakers, who do alot of spindle turning generally prefer a 1/2 inch skew. It's a bit more agile for rolling beads and can finish off urn shapes so no sanding is necessary(watch Peter Galbert's videos on skew use). Another question to ask is flat or oval. Most spindle turners like to keep their tool rests polished with no nicks. A flat skew rolled up on an edge will cause nicks if the corners aren't taken down with a file and polished. I'd go with an o 1/2" oval with a slight arch across the 1/2 cutting edge.
Bill
Windsor chair builders are working with small diameter turnings. Like pen turners, they can certainly get by with smaller tools. For larger turning, the smaller tool is too close to disaster in the form of a dig on the point when using the limited sweet spot. While the larger tool can certainly turn a smaller diameter (not length) turnings, the small is not a good choice for 3" diameter.
A tool held firmly on the rest will NOT make nicks. Only if it is lifted from the rest and accelerated downward by a catch will the sharpest edge make a mark on impact. Makes sense to take the edges down like sanding the edge of a board to keep from cutting fingers, but no real gain in use.
For planing, an oval skew is demonstrably more unstable than a flat tool, so unless you consider the shorter bevel on the reduced thickness portion an advantage - I don't - you can avoid paying a premium for one. Truth to tell, since the skew is a tool which benefits greatly from a clean and sharp edge, a carbon steel, easily honed one would be an excellent choice. I use a stone on my carbon steel, and a diamond hone on my M2 chisels. Couple passes all they need.
I'd get a straight chisel rather than a skew. Learning is easy, tool is efficient, and it beads beautifully, as well as planes.
http://woodworker.com/8-piece-bowl-and-s...mp;searchmode=2 under square chisels. I keep a 1" and a 1/2" . A Bedan is also a good choice for small work, but it doesn't have a long a sweet spot to go between honings.
Better to follow the leader than the pack. Less to step in.