Cherry Article Numbers are going to be pretty much need. look at the 5-7 digit code after the '3000' and you will know the type of material used, the connector type, the method of legends, the layout, the switches used, and some other helpful things.
Dyesubs have nearly identical legends, just as a slightly fuzzier version of doubleshot legends. it's not very noticable, but certainly you can tell up close. Cherry Dyesubs however are done extremely well, it's very hard to notice, unlike imsto legends.