[Argee]

I import all my colour images into Lightroom 4 and then use Photoshop to convert to b/w and process final printing through Lightroom 4 to my Epson Stylus 360 Photo printer. However I find that I get a variation in my mono prints with a very slight colour hue showing in certain areas particularly where I have digitally modified. I understand that to get pure b/w from my 6 colour printer is difficult but ask if there is something I can do to achieve more accurate mono colour without these slight tinges. I always use the printer colour management so should I be using alternative colour management? In the Lightroom profile management list there are many setting choices, Adobe etc, and I don't know which one to go for. Also is it best to just reduce saturation instead of using the Photoshop b/w conversion to b/w? Any advice appreciated. Thanks in advance.