10,000

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times  - Bruce Lee

This quote is packed with so much meaning in so few words; it has been adapted a few times, especially for BJJ... but essentially, it's not the individual who practices one move, it's the dedication to developing a few effective tools. Don't drill twenty fancy guard passes, as you won't be proficient. Practice one pass until you understand and perfect it.... then no one can stop it.  Perfect your technique, don't collect. Happy training!