Pat, I'll certainly let you know. But, the Amazon reviews of these (and the identical ones from other vendors) are all pretty impressive.
Oz, since I had my dash opened, I reconfigured the switches on my speedo. You're right... those things are a pain. They don't move like a typical DIP switch, which slides back and forth. I dicked with it for several minutes, before figuring out that you have to move it in the opposite direction of how you want the position indicator to lie. Weird!
Here was my speedo, pre-change...
View attachment 367815
Not exactly yours, but within a few hundred pulses/minute of yours... yes, I had to go through the list, working backwards looking for the right sequence of 1s and 0s.
We'll check ours this weekend and see where we ended up.
By the way... our tach also has a DIP switch. Does yours, Oz? Why?