I spent the coin ($50) on the cloverleaf perch trap.
Another (possibly ineffective) minnow trap is $20, so i went big and got the good cloverleaf style.

Now I can have a trap in each of the shallow areas while I work the cover with a fly.

Half acre 30 year old farm pond, Mebane NC. Aeration & feeder.
LMB, CC, SC, BG, HBC, two no account welfare carp and nine seasonal Tilapia that all the other fish are terrified of.