SEM has provided all the correct answers.  All we have to do is find the best way to use their products.  Vinyl-Pro of Western Pa. has done just that with the "color coach pro" (picks the best existing formula) and the spectrophotometer (actually creates a formula for each color scanned).  SEM saves the technician so much in time that could be lost and eliminates those nasty "call backs" that other technicians get too many of, so why not follow thru to the logical end?  A technician can be at the top of his game with the items shown on this page and a distributor can supply colors to so many customers that just cannot be consistently done without these items. Thank you to SEM for the best products, so we can take the next step.