Very cool tracks. Just thought they were like Friuli tracks, didn't realize they didn't have a pin connecting the tracks. Cool idea!
And the tabs look like they bent over quite easily, likely wouldn't take much back and forth before they would break, but chances are you would only do it once, and then maybe once more to adjust the track length if necessary, and that would be it. Then again, if they did break off, they give you lots of extra links so it wouldn't matter much.
Now if only they offered a set for a Dragon Panther G!