I started off using the blades that came with my Porter Cable Scroll saw. BADDDDDD I Got some from Lowes that winter when they were changing to a different brand. I got some Dremel, Skil and Vermont American ( including some spirals) for $1.00 a dozen on sale. I was in heaven. The were so much better that the PC blades. ( Plus I was out of them by that time) Several weeks later I teamed up with two friends and we made a trip to Woodcraft It is 80 miles one way for me. I wanted so GOOD scrollsaw blades and I got some Olsen because that is what they sell. Once again I thought i had died and gone to heaven as the Olsen blades were far superior to the ones I was using. I used them a while and one of my friends gave me two blades one day and told me to try them. He told me what kind they were but I didn't remember. I tried them and once again Heaven bound! I called and got the name of the blades and my friend even told me where to get them. Been with Mike and Flying Dutchman ever since.
OH a foot note: I did find Olesn blades at a local ( at least to me at the time) hardware store The price was $8.99 a dozen. Shook my head and walke away
Footnote 2 I still have most of the blades I got from Lowes