A lot of people go on about scams and dishonest operators selling trading systems etc...but what is a scam? Sure many of these trading systems are worthless but are they scams, are these people selling them dishonest? A scam is when someone sells you a dodgy product and then runs away with your money. These types of products are easy to spot:
1. They take only payments from PayPal and
2. They don't have a refund policy.
If the product you want to buy handles CC payments, it means that your money is being handled by a third party (usually CLickbank - look for logo) and a refund policy is mandatory. You should not even try to contact the seller - just contact the third party directly (if clickbank:
refunds@clickbank.com) - you will get your money within 24h. So if something sounds interesting, try it and if you don't like it just ask for your money back.
I have reviewed the G7 method on my site, its not a scam but I would say its average, nothing too breakthough or interesting.