Spreader tips not captive?

[Beezer]

Hi I have an early ior racer with single inline spreaders. Bought the boat completely I rigged and with a box of parts. The spreader tips are stainless and involve two bits of metal that kind of stick onto the wire sideways then rotate to keep the wire in place. There is no notch in the tip to set the rigging wire in. The mast has been up and we have saiked this way but I want to know if this ability to move the wire in the spreader tip is actually ok? i put a rubber boot on it and taped the heck out of that to try and keep it in place. Unfettered we are talking about maybe a 2.5 inch front to back play for the stay to slide in. Thanks!