Thanks for all the replies everyone
The main one I can answer easily to is Nick as it is lake specific, the lake is a lot more pressured nowadays tbh and it's certainly different to when I first fished it, and they see a lot more bait probably mainly boilies, also I don't think there is as many tench and bream these days the Rudd seem to be the key nuisance.
I think I've worked it out overnight and the answer is the maize I am using, the nuisance species must not be able to eat it so much so they are leaving it in favour of the other seeds and probably the boilies.
My mix is 50% maize with a mix of seeds, maples, white peas, and a few other bits finished off with Molasses and a top secret garlic ingredient, I found in an animal feed place
I'm now more convinced than ever it is the missing link and I am planning to do some bulk cooking and freezing 😂
Thanks guys, time for some mass prebaiting while no one is watching I think 🤔