Yea, start with the ones that give the worst side effects. How do you figure keeping gains with real gear is harder than with prohormones? You're telling me mass developed over a long cycle from compounds such as Equipoise - boldenone undecylenate - , a long ester test, Anavar - oxandrolone - or trenbolone are HARDER to keep than the average 6-8 week prohormone cycle? You're out of your mind bro. There's a reason prohormones are only run 6-8 weeks. That's because your liver shouldn't be under that much stress for a long period of time. Ever wonder why experienced juicers won't touch prohormones again? Because they're not worth the time. It's all junk water weight. You'll keep about 25% of gains, if that. You need more than 6-8 weeks to build quality muscle with test. And if you're on prohormones for longer than that, you're already fucking up your insides too much.
Anavar is also one of the most mild oral supplements in terms of A.A.S. Get your facts straight. Just because people come into your store to buy this crap doesn't make it the right thing for newbies to do.
And prohormones have already been banned. Ergopharm's 1-AD and 4-AD were taken off the shelves about 2 years ago.