what do you mean
 

Can you give more information. . Works good, I want to hear they work great before I buy

Mine used to leak like crazy. I ground the bases down in the back corner so they won't pool oil, and they haven't leaked since. I think this is similar to the mod they made to the new ones. Actually, I think they drilled them so oil would drain back.

You still have to pay attention to the o-ring, and make sure they seat properly when you are tightening them, but mine work fine now.