Here's a relative weight chart:

http://www.fish.state.pa.us/images/pages/fishin1/weightlength3.pdf

Compare the length weight of your fish to this. If your fish weigh less, then the best thing to do is remove LMB. You won't be able to put enough fish in the pond to make a difference in the weight of the bass.

www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).