I am actually trying move in the opposite direction with my lockdown. I am working on losening it up, except for very breif moments when it really needs to be slammed tight. I spend years just locking it up and holding the person super tight. It was frustrating for my opponent but kinda stalled me out. After a seminar with Eddie, a few comments he makes on MTS, and analizing his rolls I have been working on having it in and ready to lock tight to whip or stop a pass attempt, but lose to go to stomp or fancy feet when in perfect doubles. I was scared as heck to let go of the lockdown to stomp for along time. Now if I mess up the stomp, I'm right back 1/4 clinch, then start again on the lockdown game. When it is not locked tight I think people feel less threatend by it. I was totally getting passed when I first started to losen up, but I think being more fluid with it has increased my sweep % and is actually now just starting to be harder to pass. If your opponent knows how to no hand pass, no matter how amazingly tight your lock down is, he will eventually open it and pass. Sometimes I make 3-4 trips thru lockdown, stomp, 1/4 clinch, lockdown. until I get the underhooks I need to start the sweep process.
Side note:
When I went to the Eddie seminar and he said he was covering the lock down, I have to be honest I was a little crushed. In my head I was thinking, "dam, of all the things in the 10th planet system that I really need work on, this was the last thing I needed."
The lockdown has been my #1 position in my game since 2005. I spent all that money and 12hrs driving to review the lockdown. I instantly had to check that attitude and was determined to learn at least one new thing. We were all holding in perfect doubles and Eddie said something like "the lockdown isn't locked, just there, waiting if we need it" That one comment was worth the price of addmission. I ended up learning more than just that, but that one comment changed my lockdown game entirely. Moral, when your instructor says he is going to cover your "bread and butter" move, pay attention don't move to the edge of the mat and screw off, he might just blow your mind!!!