Not really i like the feedstim site and dont think they can be bettered for the more unusual and quality ingrediants for a fishing site.This black betaine you mention interests me as i've never come accross a dark so called pure version. Oleoresins are interesting, to me robin red is so good due to an oleoresin content but i'm not so sure its the same product as it was. All i know is dont get chilli oleoresin near your eyes lol. I haven't looked at this new site you mention as i haven't done much carping this last couple of years but i will have a gander later.