i agree with hrdgain and verb. a dbol only cycle is not very good, and is very hard on your liver. also you said your a "natural" bodybuilder? it doesnt sound to me like your very natural whether your on gear or not...once you use any type your not natural anymore, imo.

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age-20
6'0" 190lbs
bench press-245x2
a2g squats-455x1-9/7/06
deadlift-475x1-9/5/06

"An ounce of prevention beats a pound of cure."