Testing Relief Inks

I am in the process of finding more about the inks I use for lino prints. I have started by testing black inks
Speedball, water washable
Daler Rowney water washable
IKUA Ink and tack thickener
Caligo Safe Wash relief ink
Lawrence oil based ink
As well as
Windsor and Newton Water colour
Windsor and Newton Drawing Ink(Indian)

Used pinch press and 160g paper throughout for consistency with 2" durathene roller. Two designs used, one of cherry tree leaves for detail and one just blank to give an idea of density(coverage). Each ink was printed up to 3 times, 1st run, 2nd run(block not cleaned), 3rd run(block cleaned)

Best Results for detailed image(cherry) numbers refer to test samples
1 Speedball(1st run)
12 Daler Rowner (3rd run)
15 W&N watercolour (3rd run)
22 IKUA (2nd run)
Worst results
18 W&N watercolour, no image
19 W&N drawing ink, v pale image
11 Daler Rowney (2nd run)
20 Caligo (2nd run) too thick

Best results for plain blocks
30 Caligo (2nd run)
Speedball (3rd run)
Worst results
17 W&N watercolour, destroyed paper
4 Speedball (1st run)
23 IKUA (1st run)

Overall results
Speedball, good crisp image for finer work, difficult to get dense cover over large areas
Daler Rowney Thick ink, better when block cleaned between prints. Not dense coverage on larger areas
Watercolour Surprisingly good detail however dries almost instantly so no good for larger areas
Drawing Ink Useless
IKUA Good for detailed work with correct amount of thickener, very slow drying. Poor coverage
Caligo Dense and good coverage but too thick for finer work, needs to be thinned
Lawrence Similar to Caligo