Sorry, that's what I meant. But as long as both the primary and secondary matches each other they should shift the same with springs in. Also my secondary has no float from factory. Is that normal? I'm use to the vectors where you can move your secondary a little back and forth.When measuring the clearance behind the secondary remove the spring so you can easily push the movable sheave to full shift out, it will stop once it is there. It will not go past that point when the spring is in place and WOT, if anything, might not even reach that point.
If you are indeed correct. What changed to affect the centre to centre? Hurricane told me the tool works on all years. I set up a 23 with the tool. No belt issues on it set to 58ish mm offset. It's a very strong runner as well.I don't remember the exact number, but I do know that my 23 needs approx 1.5 mm or so more than my 17 was running using new XS825 belts. So saying that, the Hurricane bar does not work correctly on my 23. What changed? I believe the center to center changed from my 17 to the 23. A new XS 825 belt needs to sit down further in my 23 secondary than it did on the 17 with the same deflection.
There are many factors that will make the offset perfect for every machine, center to center, belt length and width as well. Only way to know the perfect offset is to measure it with the belt under tension and use a straight edge on the belt at full shift on the clutches and measure from belt to the straight edge to find out what's perfect on your machine and belt being used.