Mepp’s See Best spinner technology is now used on the company’s XD and Aglia spinners and Syclops spoon. Based on the independent research of Dr. Coling Kageyama, the See Best system uses only those colors and patterns that are most visible to fish under very specific water conditions. For example, in warm, turbid water, a gold blade and a black decal with fluorescent chartreuse dots shows up best. In cool water and sunny conditions, a black blade and a fluorescent chartreuse decal with black dots is recommended.