I've read several posts regarding using an aider with a Wild Edge style step. There are posts about how to silence your carabiner so it doesn't make a metallic clink on the step. There are posts about how to reduce the biner from sliding on the rung leaving it off center and side loading the step.
I know there are a lot of different types and styles of aiders but if you are using something like Carl's Versa Straps there is a way to attach it to the Wild Edge style steps that is completely silent. Simply clip your carabiner through a loop in the Versa Strap about 6"- 8" below the end loop. Loop the end loop over the WE rung and bring it down and clip it to the carabiner. This will create a soft connection on the WE step which will not make any noise and will be less likely to slide like the metal on metal contact will.
I know there are a lot of different types and styles of aiders but if you are using something like Carl's Versa Straps there is a way to attach it to the Wild Edge style steps that is completely silent. Simply clip your carabiner through a loop in the Versa Strap about 6"- 8" below the end loop. Loop the end loop over the WE rung and bring it down and clip it to the carabiner. This will create a soft connection on the WE step which will not make any noise and will be less likely to slide like the metal on metal contact will.