Magnum is one of the lesser known synthetics. Most people on here either use QuickFix or Agent X.

Btw: The 200% 300% and 500% Guarantees are very possible. The point is, the companies make products that work everytime, so they never have to pay out the guarantees. If the products didn't work, they would be bankrupt. For example, QuickFix 4.0 has never failed a test.