Gill nets would work poorly for bass. While being a good idea a seine would be nearly impossible one little snag and it is over plus you would stress all the other fish while trying to net the bass. The best way is rod and reel and hiring someone to shock them out. Where are you located? The company you used before or some one here may help if they are close.

I think the POnd consultants may have meant 30 lbs/acre this year. AFter that you can scale back. I make the same recommendations quite often. The pondowners that have 30 acre lakes usually have some buddies. They don't like it b/c it becomes work but the policy is if you come fishing you have to kepp all bass less than 14 inches and must write down harvest and bigger returned bass in a log book. I would just invite friends and family I trust b/c otherwise some folks would take out your bigger bass.

One other thing is to increase the food for the bass. Stokcing intermediate bluegill, threadfin shad, fertilize and start a supplemental feeding program will help put on weight but a high number of bass will still have to be removed.
Good luck!

Greg Grimes
www.lakework.com