RC Tank - Track mods v2

This is a new version of the tacks for Staind’s RC Tank. The redesign is based on test results and on my earlier remix of the tracks. https://www.thingiverse.com/thing:2862231

Short videos:
- Testing New Track Design (mod2) https://www.youtube.com/watch?v=8ulxJjGS1Ts
- Some comparing during intermediate tests, Tracks, New Design vs. Original Design https://www.youtube.com/watch?v=9uKf3B8hOis

Improvements:
- the same track can be used with and without insert;
- tracks can be printed as