Dick good point. Ward you goign to PB convention? I will have a talk on bass harvest. I will add a slide to try and answer your question. Are you running Wr index? If not start now! Here is a link for you.
http://www.lakework.com/articles.php go to bottom of page. If you track this you will start to see a shift in Wr. Keep in mind there are seasonal variations as well. It takes time. A genral rule of thumb with many factros that determine # to remove but low # is 25/acre so I think you still need to pull 150 more out of the lake. Also folks worry about pulling out too many, you will know. If you normally catch 40 in afternoon of good fishing weather and no pulling out 20 you starting to get there. Good luck!