Four Color Screenprinting Techniques

This is Aaron Kent's, the owner of Cincinnati's DIY Printing, approach to four color printing:
Yellow first, straight from Magenta, adding 20% transparent extender base Cyan, adding 30% trans 80% trans, with black
Prefers a halftone of 35 frequency for 230 mesh screen

I have been going at it this way, I add 50% transparent extender base to magenta and cyan. I heard that if your image is blue or green in overall tonality, print cyan third — if it's warmer or redder, print magenta third. I tried to print yellow first once — but it was hard to register second color through the yellow mesh.

I've been also preferring 30-35 dpi, I think I printed a smaller 8x10 print at 50dpi. I think a 50dpi on a 18x24 print would be very inconsistent.

Angles of colors:
Cyan 80 degrees
Yellow 105 degrees
Magenta 20 degrees
Black 50 degrees

I don't start at 45 degrees because it creates angles the eye can pickup.