Here lately, the majority of the fish I catch on my go-to bait ,(baby brush hog), are short. As in, 12 shorts and 3 keepers at Cedar Creek this Weekend. Then, the same Yesterday at RR, mostly dinks with a couple of keepers.

I am just fishing in small fish areas?, or do I need to size up? I just can't seem to get on decent quality tournament fish..

You guys always help me out, any ideas?

For the most part I believe bigger bait better fish. But it also means less fish too.
Mainly fishing where bigger fish are likely to be is a better way to go. Little fish stay in schools in shallow water more than bigger fish.
Bigger fish hang in easy ambush places like grass edges, around deep timber and mid lake humps.
Little fish seem to feed continuously while bigger fish are more likely to feed periodically.
Get away from the mentality of wanting a lot of bites a day and you will have more luck.
Fish a 10” worm on the deep end of a long point or ridge.

Well said 9094. The big worm is a great idea. Also a 6" soft plastic swimbait this time of year in the same areas works well. As the water temps start to rise, the big girls like one, big easy meal.

You get around the right spot with quality fish the bait means less in my opinion. They'd eat the baby brush hog if it was quality fish. It's not like the 3-5lbers are passing up your bait. You're just not around them sounds like

Sometimes.
Sometimes smaller bait = bigger fish.

gotta put it where they are