I just purchased a gen 1 package on ebay. Listed brand new in box. I assembled the product and began sharpenig some old knives. But they werent coming out sharp. So I puchased an angle measure and I found that while the arms are set at the same angle. They are in fact way off. Example: with both arms set at 16 on the system. The angle guage shows 14 degrees on the left. And 15 on the right. It seems to get worse as i get wider. To get 16 on both sides. I have to chose 17 on the left and 19 on the right. Im either doing something extremely wrong, or have a misconfigured or faulty unit. Im betting the former. Any suggestions?
Good info from Bill above…
Id also add that many have just turned that bar over and ignore the graduated markings altogether because of the already mentioned fixed vise issue and blade height making the readings unreliable.
Gratz on the new system too btw…mine was a gen 1 second hand purchase that I upgraded that arms on…and a few other things 
Thanks guys! Great info. Trying to learn as much as i can. I feel like i have the process down. I get nice bevels. But finding the sweetspot is very difficult for me still. Im sure i can get a nice sharp k ife now that im not relying on the nothces.
ET and Cliff are right about the angle bar. It is calibrated for a particularly sized knife, so if yours is wider or higher, it will be off. That is why the angle cube is more accurate in those cases.
On the other hand… In most real-world cases the precise angle doesn’t matter that much. A 14/16 bevel can be just as sharp as a 15/15, So who cares if you’re off 1 degree. Being OCD and WE users, we’re obsesses with angles, simply because the WE gives us that possibility. But if you’re sharpening free-hand you’re never going to achieve angles within 1 degree.
And for the sake of sharpening easily, the marks on the angle bar are useful. You clamp in the knife and record its position and angle settings. Next time you can clamp in the knife in the same position with the same angle settings and you’ve touched it up in no time.