If imitation is the sincerest form of flattery, then InstaTrim owner Greg Amundson wishes his business wasn’t so admired. Over a decade, his made-in-Minnesota sealant grew to more than $3 million in sales last year. But this year, sales are down by 35{8ba6a1175a1c659bbdaa9a04b06717769bcea92c0fdf198d429188ebbca09471}. Amundson and his lawyer attribute the abrupt […]