Just something to look for when you inspect the parts.
Some of the clear plastic tabs missed having all of the flashing removed near the hole in the center. The flashing will prevent two tabs from fitting flush to each other. Does not seem like a big deal unless you use the tabs next to each other and you are expecting the result to be
1" longer or shorter.A few of mine had flashing that caused a 1/32" gap when placing two side by side. Yes I have reason to do that . ;~)
Here is what to look for. I simply used a file to remove the excess.