The makeready should be performed in the same way as all your other makereadies… otherwise you’re not accurately representing your process.
The Press kit consists of a TIFF image that you print at your standard Solid Ink Densities and Dot Gains. You then send the press sheet(s) to Chromix and they average the sheets, and return a press profile to you.
The image is around 8" by 10" so it will fit on A4 or Letter paper.
From an industry standard standpoint, it’s important that your Solid Ink Densities and Dot Gains are at or near some industry standard. At this point in time, TR001 or SWAP is really the only choice for these specifications. (Visit www.swap.org for more information) In this way, a customer can have reasonable expectations of your process and you can meet those expectations without too much heartache!
Also, keep in mind that you would want a profile for each ink set and commonly used paper. This could be more or less dificult depending on what kind of printing you do! Book printers usualy don’t have more than two or three papers and only one ink… Fine art or specialty printers may find it more useful to produce profiles for only their most used inks and papers.