All longarmers are different. Like quilters in general, we tend to start off in different directions and wind up with different habits and skills. I have never seen the need for a Towa gauge. But I love my Red Snappers and Red E Edge clamps. I don't do pantographs. I do mostly free motion but also ruler work, so I use straight edge rulers and a few circles, hearts, curves, etc. I think my favorite longarm tools are actually my books and the internet, where I find more ideas for designs.