Am' currently running it every mon & fri at 300ius. No sides at all. In fact the boys seem bigger if anything and other than once-in-a-while mild pains in the nuts, hehe, like c manson said, nothing else.
HCG raises estrogen so you could have gyno problems if sensative.. a little adex with it and you should be fine, I try not to use too much at a clip (1,000iu for example) I would rather run 500iu ED than 1000iu EOD
i've been doing 250iu mon and thurs with now problems at all. i just take some extra aromasin on those days. i've yet to experience this pain in the balls yall are talking about.