Oh yeah, I forgot we were talking Dragon links here.
That's a whole different ballgame! I haven't seen the Hetzer links, but the Sherman EZ8 links (my first single link attempt) required sanding on every single link just to get them to fit together. Then there were the sink holes...2 big ones on every link. So if you like sanding and filling thousands of sink holes, no problem! Not hard, of course, just very tedious.
ModelKasten or Friulmodel trax, just to name 2 brands, are much easier to use and much more accurate.
But you don't get all that sandin' and fillin' practice!