Squarebills are money. CRS Chartruese Shad is killer in my pond. Crappy, Largemouth, even cats. I use the 2nd from smallest size. I also use the poppers after reading good things about them compared to yellow magic. Not as good, but d**n good for a fraction of the price. Caught a few on bone and ghost shad. Got a couple on the flat sides square bills late last year but didn't have a chance to really test em out yet.
Edit: And someone else mentioned the hooks. Forgot those! Its all I use for Texas rigging.