You have dreads, are you African-American? I ask because if you are you, African-Americans have a harder time cleaning their hair of THC metabolites than others. I like Zydot, I know many who have used it first hand.

What they might have meant by working around not being able to use your dreads they might have meant taking hair from an alternative location. The only case I have heard of them going from hair to urine the person was undergoing chemo and had lost almost all hair. Blood is actually easier to beat than hair. There is nothing you can do to beat a blood test but the detection time is usually around 72 hours so if you stop for a week before a blood test you should pass.