What are y’all using for column mounted tachs?

Is this tach for the Dart in your profile? I have and old a body tach and sender that came in a box with some parts I bought at a swap meet.
Indeed it is… it’s currently an auto on the column but I’m going to 4 swap it in about a month from now..figured what better place to mount one than in the column since I won’t be using in that way again..