Well, the McNaughton is a good system, but anyone who has tried to use it swears at it, and all who know how to use it swear by it. I can remove a core with it in less time than I can set up the other 2 systems, but that may be partially due to me using it more than the other systems. It does have a learning curve. The biggest problem with it, is that the bends on the blades are not perfect with the last inch or two going straight rather than following the perfect arc of a curve. This is why it always drifts to the outside of the cut as you go in. The deeper the core, the more of a problem this becomes. I guess that they profile the blades, as in rounding over the edges top and bottom before they bend it since all you would need to do is put them on a belt sander to get the 1/4 round profile. You can not get enough pressure on the tip for them to follow that curve, which is bending 101. A torch should help this, if you have a form for it. Some day, I will make my own.... The Woodcut system is a good set up. Only thing I don't like about it is that you need to engage the tailstock to use it, and for 99% of my bowls, I don't have the tailstock on the lathe. The Oneway is a good set up, and it is rock solid all the way to the end of the biggest core you can take with it. The main draw back as far as I am concerned is the cutting tip which, to me, is the worst design ever. Many switch to the Hunter, I think he calls it the core pro tip or some thing like that.
robo hippy