Brad, If it would be legal, I would strongly suggest that you start a large, (1/2 page at least), ad campaign w/ side by side pics of Dansk and SSI heat exchangers, with copy and headline skillfully crafted to protect your trademark. Trademarks, especially yours, are extremely valuable assets. You should start going after trademark infringers, (the vendors), w/ the zeal and the lawyers that Porsche unleashes on infringers. That would get the message out, and at the same time just plain be a great ad, w/ the big photos.
Your current ads are classy looking and OK impact-wise, you need more than "OK". No charge for this consulting.
