Hello VEX community!
I used to be involved with a VEX team until I joined my high school’s FRC team. One of the things that I have learned through VEX and FIRST is that a reliable robot is one of the greatest competitive advantages that a team can have. For this reason, I wrote a quick blog post about what I have learned regarding writing a reliable robot program. I hope that your team finds this helpful!
https://blog.alexbeaver.com/reliable-code
This blog was originally written for FRC teams so most of the examples are in Java, but the concepts can easily be adapted to VEX robotics, and I first implemented many of these ideas in VEX. In addition, there are more posts that can be fairly easily adapted to VEX robotics from the FRC system.