Right... Bob... but since you are getting a new nardi to 9 hole adaptor ( and 26$ is a great price), this 10$ bandaid would not be necessary.... unless wheel- blinker switch spacing is an issue for you. Let me explain.
... I actually drove with this bandaid for a season, and discovered the extRa 1/2” spacer gave me better spacing between my Lempert flat wheel and the blinker switch arm-lever. Without the spacer my hands would sometime hit the blinker lever when parallel parking,/ turning the wheel +/-30deg from center. Intended up experimenting with 1/2, q and 1.5” spacers before buying the adaptor I use today with my flat wheel.
with a typical 1” dished wheel, spacing between the wheel and blinker arm will likely not be an issue, but with a flat wheel it could be... depends on the size of your hands/ girth of fingers/knuckles and how/where you grip the wheel when driving.