Man, if I only I had written a book about this.
Use the correct TM for how you train. Put on knee wraps prior to the meet, make sure you are comfortable with wrapping, etc. You don't put on wraps only for Jokers - this has been explained in the book and why that is not a good idea. Also, make sure you understand how long it takes to wrap, etc.
Or you can just wear knee sleeves, avoid all this shit, avoid the crap at meets and just squat.