I do the same, in that the scale is to get it close and then I measure. But in all fairness, I use a lot of sacrificial fences and jigs.
There are different strengths that key in to different uses and styles in the two fences that that you are trying to compare.
Incra systems key into to minute accurate repeatability. Incra systems revolve around their patented locking system, which enable locking/movements of a known measured amount. Their basic locking system keys in on 1/32" increments. It takes extra time and effort to ensures it's locked into those increments accurately. I see some using it in a careful, watching kind of way to ensure that kind accurate, measured movements.
Biesmeyer keys around industrial strength kind of accuracy and large "movements" to those positions. It has no "increments." It keys in on that smooth movement from point A to B, then a strong secure locking at that point, then the strength in construction to do that for years. I see it's construction being able to take abuse from all-day, everyday industrial/commercial use and stay accurate in it's own designed, intended way.
Both are adjustable within it's own designed purpose of use.
The Biesmeyer does not move in increments, but gets to where you want it quickly and smoothly. Nor do I think of the Incra as being industrial strength, but think of it as being more like a precision instrument. Hard to compare different things, for different uses. Like comparing a miter saw to a meat slicer. Both can be accurate, just in different ways.
I feel August Leyman's adaptation of the Incra TS/LS as an ingenious system that combines both's strengths- Industrial strength... accurate, fast and smooth movement over large measured distances... and machinist's type accuracy.
"Don't worry, I saw this work in a cartoon once."
"Usually learning skills and tooling involves a progression of logical steps."
Last edited by MAFoElffen; 01-25-2013 at 01:42 PM.