Don't freak out 😬 when your springs (mostly the rear) break-in/settle, and you're left with a gap between the adjustment collar & spring at full droop.
Just to be clear, every Tekno manual that mentions anything about the turnbuckle threads... one end has normal threads, and the other has reverse threads is all they state. The marking is just put on there to keep orientation the same throughout the platform, and does not mark left handed...
You are absolutely correct. The most fun to drive 1/10 scale RC platform ever! The ET410 was so much fun, I had to get a second one. Don't pay attention to me though. Everybody's tastes are different. The ET410.2 is next up on the list to build after current build is out of the way.