TOPIC: Need opinions of tach

I need to install a accurate tachometer on my 1963 Johnson 40 hp twin, magneto ignition. I have considered a 'Tiny Tach' with custom leads from them, that will run $50. If I go with a analog type I will be mounting it under dash as not to cut holes into the old dash. Looking for opinions as to best for the money and accuracy of product.

I gave you a response on the main board about the tiny tach. Any tachometer that indicates it will work on a twin cylinder, 2 cycle, magneto ignition motor will work. They are getting very hard to find - as it seems few people equipped twins with tachometers. Most tachometers seem to be for 4 & 6 cyl outboards