Looks good so far! I just build my first micro coaster and i was surprised to see how fast and smooth the trains were going even if it doesn’t has a spine. It really is about the track smoothness and support. First you should fix the odd bump on the first drop. Keep in mind that everything that will come after the first drop depend on it, so make it the smoothest as you can. Next, never lube your micro cars, it will make them slower with time, especially with WD40. My special trick to get their max potential : insert a 1" yellow micro rod between the upstop wheels so it makes the space between them wider. Let the rod there for a few days before removing it. I’m gonna post a pic to show you. Hope I helped!

Looks good so far! I just build my first micro coaster and i was surprised to see how fast and smooth the trains were going even if it doesn’t has a spine. It really is about the track smoothness and support. First you should fix the odd bump on the first drop. Keep in mind that everything that will come after the first drop depend on it, so make it the smoothest as you can. Next, never lube your micro cars, it will make them slower with time, especially with WD40. My special trick to get their max potential : insert a 1" yellow micro rod between the upstop wheels so it makes the space between them wider. Let the rod there for a few days before removing it. I’m gonna post a pic to show you. Hope I helped!

Thank you! Also, I new about the weird bump, haha. I just forgot about it and never got back to it.

Looks good so far! I just build my first micro coaster and i was surprised to see how fast and smooth the trains were going even if it doesn’t has a spine. It really is about the track smoothness and support. First you should fix the odd bump on the first drop. Keep in mind that everything that will come after the first drop depend on it, so make it the smoothest as you can. Next, never lube your micro cars, it will make them slower with time, especially with WD40. My special trick to get their max potential : insert a 1" yellow micro rod between the upstop wheels so it makes the space between them wider. Let the rod there for a few days before removing it. I’m gonna post a pic to show you. Hope I helped!

The bump has been fixed. Also, if i'm not mistaken, motor oil and silicon spray are okay to use for VV. There are a lot of people who use lubricant and they haven't messed up their cars.

Well once i used WD40 on my micro car and now it can’t even climb half the height of the drop. When i try to make the wheels spin with my finger they slow down really fast.
I also tried silicone spray. On the first test runs the car was flying on the track like i never thought it would’ve. But the more i used it the more it started to loose speed. I think silicone spray is good for bad micro cars but if your car is already running good, i don’t recommend it.
Edit : on your new coaster, is the car close to make it through the loop?