Talking shop bought boillies, there's quite a few out there that are really good, many that are mediocre, and a lot of rubbish too ! The most successful shop bought i ever used was Ritchworth Bioplex, but that was before i started making my own, making your own allows to to tweak, and change the mix until you are really happy with the results you are getting, once you have confidence in your bait you stop messing around chopping and changing, and your results will markedly improve, even skyrocket !! it is all about confidence in your bait, which comes from consistently catching, once you stop chopping and changing, your confidence will just go up and up !