That's a great tip! Feeding maize and using it on a hair rig is an excellent way to catch carp and other big fish, especially on waters where they've become wary of boilies. The sweet juice contained in maize, similar to sweetcorn, can be very attractive to fish, and its natural appearance can help it go undetected. Additionally, using a PVA-friendly mix can help to keep the maize particles suspended in the water, increasing the chances of catching a bite.