I should hasten to add that I have had my SFA for about 13 years, which put its purchase ahead of the more ready availability of alternatives that are now being seen. There may have been alternatives, but this forum didn't exist, British Blades had barely been born, and it was a lot harder to find information than it is now. I bought the SFA because I had seen Ray using one on TV (and it looked good!) and I didn't know of anything else that would work like it. I bought from Woodlore and it cost £45. If I was coming to the market now I might look at the alternatives quite seriously.