I can tell you from our products, that we are seeing re-bill rates between 40-70%, depending on the traffic source. All of our products are neutraceuticals (muscle builders, cleanse, teeth whitening, etc). Our products are all physical products and our trial period is 14 days from date of purchase. If we see sources coming in under 40% rebill, we shut them off. Anything above, we can generally work with at some rate. Hope that helps.