a couple of points.
1. having over 20 years experience in Hashgocha work
2. for information regarding products and hechshairim, i have found that the Star-K HOTLINE @ 410-484-4110 IS AN EXCELLENT SOURCE OF INFORMATION. IF THEY SAY “IT’S NOT RECOMMENDED”, DON’T EAT IT.
3. THE crc website is excellent.
4. the Assoc. of Kosher Organizations is a good barometer of reliability. considering the depth of ingredients required to manufacture a finished product, the reliable Kashrus organizations banded together to cooperate with each other. you can ask the hechsher that you are questioning if the are a member of this group. the rubberstamp hashgochos would not be.
EDITED