I have all three of the different coring systems, including the Woodcut. I also have the PM 3520 A lathe. It fits just fine on my lathe. The collar is placed on the post, to keep it at proper height, and you don't have to readjust it every time. It works fine. There are
2 things that I don't like about it. It is made to have the tailstock engaged when you are coring, and I never use the tailstock when doing bowls. It will work without it, especially on softer woods like cherry. On harder ones like some osage orange that I was coring before Christmas, it was chattering quite a bit. I plan to make an attachment that will clamp onto the ways of the lathe. The idea behind the tailstock attaching is to give added support, similar to a longer handle. The other thing that I don't like is that the biggest core you can take with it is about 10 inches. This is a waste if you turn bowls much over 12 inches in diameter. I have also found the blades a bit of a pain to change. The tool does do a good job of coring, and is simple to opperate and set up. The price is right. After I have had time to put this and the Oneway system through serious trials, I will post some comments here. I have done a number of posts on using the McNaughton system. robo hippy .