You guys are on the right track.
Most important is that the knife is sharpened at a low angle - 10 degrees works for me, and that it be stropped to a razor sharp edge. I doesn't much matter what model of knife, though longish blades will be more difficult to do detail work with. Stockman and congress patterns are good. The Colt whittler patterns, and the Colt 4 blade railsplitters are good even with no modifications.
As you go along though, you will find that you wish that one of your blades was a little different in basic shape. Fix it. A single cut flat file, such as can be obtained from a chain saw dealer for reducing the height of the depth gauges on a saw chain, will work well for this, along with your stone and strop for finishing up. Doing this with an inexpensive, non collectible knife, will not be traumatic, and will result in a more useful whittlin' iron.
Most important is that the knife is sharpened at a low angle - 10 degrees works for me, and that it be stropped to a razor sharp edge. I doesn't much matter what model of knife, though longish blades will be more difficult to do detail work with. Stockman and congress patterns are good. The Colt whittler patterns, and the Colt 4 blade railsplitters are good even with no modifications.
As you go along though, you will find that you wish that one of your blades was a little different in basic shape. Fix it. A single cut flat file, such as can be obtained from a chain saw dealer for reducing the height of the depth gauges on a saw chain, will work well for this, along with your stone and strop for finishing up. Doing this with an inexpensive, non collectible knife, will not be traumatic, and will result in a more useful whittlin' iron.