I need some advice. I'm kicking myself. A year or two ago I bought a Dixon 8spi pricking iron. 9 teeth. I don't have much free time, so I've practiced marking and stitching with it. Originally--being cheap-- I thought I could try the tilted heel punching technique to navigate corners. I should have bought the 2-tooth 8 dpi iron. With the demise of Dixon tools I feel stuck. My question can I purchase a Blanchard 8 spi 2tooth iron and expect to get on with life or are they not too interchangeable?