Looking for input/help on the Pro Tram System from Edge Technologies

[awemawson]

Do you have sufficient 'pre-load' on the indicator plunger? Have you scrupulously wiped clean the magnet top and the indicator ball? Is the magnet sitting on a perfectly clean wiped surface? Are there stray microscopic particles on the magnet?

I have a Pro-Tram and my indicators repeat well within spec. when all the above are taken into account.

Andrew