Train Surfing is based on Turnstiles. Start with one rep of Turnstiles then you’re going to hook the string on the counter weight to wrap around your palm then up wrap back into a fake double or nothing.
Like the introduction says, start with one repetition of turnstiles. If you don’t know that trick you’ll have to go back and learn it.
Instead of doing another repetition, shift the back string to the inside of your palm and hook the string on the counterweight with your thumb. This will cause the counterweight to wrap around the palm. The yoyo will wrap around the fingers.
Once the counter weight hits and redirects itself, give it a little push if the momentum isn’t there to unravel everything on its own.
Catch the counterweight once its unraveled, wait for the yoyo and mount the yoyo back on the index finger. You are back where you started. Repeat as desired.
Tricks to know before Train Surfing: