No real tricks or anything. Mine isn't the absolute best fitting either. I've been looking some sort of homemade support for the center of the bumper and using a radiator cooling panel to help cover the impending mess. I'll make sure to update you with what I end up settling on.
Seriously, thank you for still rocking it. Those stickers mean a lot to me as something I created. I sorta like their my dumb little child. They might be goofy to everyone else, but I sure do love them. I've actually been working on some new designs. I'll make sure to get some out to you once I get the designs finalized and figure out a way to print them. More vintage English/Japanese styling to come!