What can I tell you. I do sales for a living. You don't insult or demean potential customers just because they don't understand/believe in your design. You prove them wrong. If you can't, then you wait until you can. The last thing you do is insult them.

Then when other prospective customers ask to see proof that it works as advertised your response is come see it for yourself. I won't take pictures or a video to prove it's effectiveness... <img src="/forums/images/graemlins/rolleyes.gif" alt="" />

Who in their right mind would spend that much without proof?

Monstero1975 needs to realize the burden of proof for the effectiveness of any product is on the seller, not the buyer. To become offended when someone questions him because they don't understand his design (even when they're not being civil) shows a lack of patience and business acumen IMHO.

Look if you wanna sell this to hard core off roader's (as he's noted) without showing that it works on the trails, then you SERIOUSLY need to do a total rethink of your business plan.