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Quick question. I intend to run my first manipulation on 6730 sg tomorrow night . It says it has .5 tolerance. What increments should i use for the graph? I was thinking would need to be .5 or smaller. ......??

.5 tolerance means that to dial a "10" you need to place the wheel between 9.5 and 10.5 for the fence to fall into the gate.

Even though theoretically it shouldn't work 100% of the time, I have had plenty of success on 6730s measuring every 2.5 increments. It is important to dial precisely, however. I have 5 6730s in my collection (including one manufactured in 2013) that I have opened this way dozens of times, as well as multiple opens on sporting goods store safes that I believe were also 6730s--never had an issue. Maybe just been lucky, who knows. If you are worried, you can graph every two increments instead of 2.5 but you don't need to go any tighter than that. Honestly, I think the manufacturers slightly exagerrate the precision of their locks.

Trevor

Can you post a picture of the gates and fence?

Stick with 2.5 unless you are focusing on a low or are finding the last gate via brute force.

After running 3 manipulations on it and playing around with it a bit i have found it will open 1 number off . First manipulation i graphed it in increments of one.. second time i ran a speed manipulation on the 5 s no graph and got it fast . This is my first group 2 lock . I have noticed a kathunk sound when running awl near what i believe to be wheel 3 gate and a few other spots. I am curious to see if this is in fact gate locations. The sounds are not in contact area . I can feel it and barely hear them. I am finishing up a manipulation after which i will investigate kathunks . And i agree that they do exaggerate tolerances ...Thanks to all...

The sounds you hear outside the contact zone might be moving a flywheel and/or the flywheel grabs the wheel to which it is attached.

Sounds like you're wasting no time! You're moving right along.... nice!

As far as increments, I agree with others... every 2.5 will usually suffice.
By doing so though, you're pushing the limits.... so just as CPT1911
said... you'll want to dial fairly precise. To zero in on a gate, read every
inc. I'll sometimes go in 1/2 incs on either side of a found gate in order
to find the true edges of it. When BF the last number, go every 2 incs.

In regards to what you're feeling/hearing outside the contact area;
It wouldn't be any indication of a gate (or shouldn't be anyway).
I'm curious to see what you find. Maybe take a very close look
at the radius of the drive cam for imperfections. The lever nose
running across those could possibly be what you're picking up.