Back in the mists of time, I used to make my own baits ,I mean they were based purely on attraction ,semolina ,soya flour and so on ,known then as a 'stinky winky bait ' only thing was ,they totally outfished well known carp catching concoctions from the main bait companies at the time...
It was so successful I caught someone stealing my bait from my titan ,if they'd asked I'd have given them the recipe..the main constituent was low boiling points ethyl alcohol flavours and Asafoetida essential at 2 drops in a pound mix .....it was coloured yellow or orange ..it was truly devastating..
Especially when critically balanced with a round bean bag foam thingy pushed inside ,then a coke bottle cut in half to hold up infront of myself biting tiny bits of putty off ,until it sank ,ohhh so slowly....
I reckon and I'm always honest ,around 90% of stock , of the several waters I fished in the 90s fell to that bait ...thats no bs ...Good fun at that time ...