The Bitzenburg fletching jig is all it's supposed to be the CLAMPS are in my limited experence top O the line they are, as said in many reviews, part of the best fletching jig on the market today. The magnet on the jig is very strong and holds the clamp(s) in place until the fletch is fastened to the arrow shaft. I use both the RW clamp and the LW clamp and have had no problem with either one. It is very pleased I am with this tool.
I use this right handed fletching jig to put a helical twist on 3 inch Fusion vanes. It does a great job of stabilizing fixed blade broad heads out past 60 yards. It is also bulletproof and I highly recommend it.