I used to get my guard passed all the time because I was so attack oriented from bottom.
Once they defended an arm bar or triangle, they would be able to just shoot by my guard easily.
Then, I realized I needed to make my guard harder to pass...so I studied the tapes of the best guard players in the world and watched what they did...
I started thinking about and researching what the most common guard passes were and then went to work on developing the defenses from them!
When I finally started to focus on this, I quickly went from blue to purple belt!
And of course, I put everything I learned into proven, battle tested system that works for any person any size or flexibility!