I don't know anything about those two feeds, but I just wanted to second Dood's thoughts on the search feature.
In the future, if you do a search, and it gives you no results because the words are too common (it's unfortunately a needed feature, due to bandwidth), you can actually search the site through an external search engine.
In your browser's search box, type "site:rabbittalk.com" then a space, followed by your search terms.
I usually just try to come up with different words, but sometimes I can't type anything in that is not too common, and I use this method.

<br /><br />__________ Thu May 30, 2013 11:43 am __________<br /><br />I do want to mention, too, that feeds do change composition sometimes. Older threads on a certain feed may not be as valid now as they were at the time.
Especially with prices rising, and manufacturers trying to come up with ways to keep their prices from going up too dramatically, some may have begun substituting cheaper ingredients for the higher-quality ones they used to use.
Occasional "refresher threads" on feeds are probably not a bad idea.