I have a Ryobi 16in Scroll saw Model SC163VS. I have replaced the blade holders twice now. It appears these blade holders do not withstand the constant removal of the blades. The threads become stripped and thus rendering the holder useless. I have an order in now for a new blade holder which I was told is on backorder. I am in the market for a new saw possibly a Delta or Dewalt. (any suggestions) I was wondering how functional the quick release blade holders stand up? As for the Ryobi, obviously there is a problem or there would not be a B/O on these parts. Soon to be a dust collector in my basement.