It would be okay to also move some smaller BG. I would move mostly 6"+ fish. If you want opinions of male vs female before moving get us some pictures of test fishing from the neighbors pond. Males should be nesting now,, so those you catch in the nesting area would be mostly males. Focus your main attention on the size and shape of the gill flap. Also females will have yellow breast area while males will have darker rust breast bottom in front the pelvic fins.
