I use to use Robi blades. My scroll saw was an old Craftsman, using pined blades. I changed the clamps on it so I could use pinless blades and I still bought Robi at home depot. I liked them OK but Mikes blades are by far much better.I wondered about the Flying Duchman when I received them, they seemed flemsy, boy was I suprised. The Spirals still drive me nuts, but I will get the hang of them. So far my favorite is the #5 FD-UR.
I got a (new to me) scroll saw, a Delta SS350. So now I am learnig a new saw and new blades. The combanation has chang my scrolling a lot. I have only been scrolling a little over a year and I sure feel better about my work. Thans to all you advice.