I am finding that an oil-based ink gives a more even result than water-based, without having to put the print under undue pressure in the press. Too much pressure can blur the edges of the image, and the joy of lino depends on crisp simplicity.
With oil-based ink, if the lino is damp then the ink does not take well, so I clean the block with a little white spirit or methylated spirit before drying it and applying the ink. I need a new roller as the one I have is past its best.
I hope to post a print on high-quality Japanese paper soon, when I shall then edition it for sale on Etsy. Watch this space!