Vibroplex Champion Key Slow Down

Jerry my friend from the Warrenton area gave me a good idea about slowing down my Vibroplex Champion key (from a buddy of his).  Jerry did not know what it was called but sent me a picture of it.  It is a stair gauge, I bought 2 from Home Depot today.  Here are some pics.

Fits perfectly.  It REALLY slows it down to about 13 wpm.  Yea!