Hey I've heard about the two forms B-12 supplementation comes in and heard various things about the difference - everything from: there is no difference; to methyl is better; to only take Methyl, cyancocobalamin is actually bad for you in some ways. Anyone have a good source that isn't homeopathicnews.com or whatever or experience with the two? Also, interested in hearing what you may know about B-12 shots- any experience? price? effects? Thank you.