Boxes are flat, wide obstacles you ride across. A 50-50 means riding straight across the box with the board parallel to the feature - this is the most fundamental box trick. Approach straight with enough speed to clear the full box, ride up the ramp, and keep your base flat on the surface. The box is slippery - let the board glide.
Video with more explanation:
Source: Julia Rick · HOW TO 50-50 and Boardslide - Cable Wakeboard Tutorial
Key tips
- Approach straight, not at an angle
- Keep your base flat on the box - edging will catch and throw you
- Weight centered, knees slightly bent
- Keep your eyes on the end of the box, not your feet
- Arms relaxed, handle at hip level
- Ride all the way off the end before edging again
- If you find yourself sliding off the box early to the inside, build a little momentum away from the cable just before getting on. Once you’re on, the cable will start pulling you back toward center.