Kennieyk :
How many angles should I use and in what order would I make the angle .
This is a called double beveling, or creating a secondary edge. You start out with the more acute angle, say 15 degrees and hone until it goes almost to the very edge. You then finish sharpening on the more obtuse angle, say 20.
The exact angle that are optimal depends on what is being cut, but 15 and 20 hold over a wide range of tasks and give solid cutting performance with a high durability. If the knife was more of a pure cutting tool, you might want to try 10 and 15 instead.
The more of the edge that becomes used by the more obtuse angle, the greater the durability but the lower the cutting ability and ease of sharpening.
Is it any better then a regular edge ?
Multi-beveling creates an edge which is slightly lower in cutting ability that uniform edged blade with one angle, but can be a lot higher in durability, and is much higher in ease of sharpening. Usually the angles are limited to two as going beyond this gives little in terms of cutting ability or durability, and it much more difficult (time consuming) to maintain.
A convex edge is similar in nature but is applied much differently. A true convex edge is easily achieved if you sharpening using a strop or anything which behaves in a simmilar manner such as sandpaper on styrofoam.
-Cliff
