he have a roland lec 330 and printing several substrates. On metalic subtract I printed a cmyk testchart with white ink, so I didn´t profile on metalic. But he ask me a more acuracy on spotcolors when printed on roland without white ink. So i tried to measure on barbieri and the result is pretty awesome. Barbieri lfp measure with a 0/45 geometry like other user said.
Probably in a few weeks i' wil doing some measurements on cmyk testchart without white and try to simulate on roland lec330. after that I post the conclusion and result here.
Sorry for my english.