Hi All, been reading for some time know, thought I would try to get some specifics answered from the pros. Over the past two years I have started to buy some better knives (Mac Pro MTH-80 and BON-60). I am going to add a petty or utility here very shortly. I have a set of Henckels International that I bought 10 years ago. I would like to shapren these as best as possible until they are replaced with better ones. I have read many posts from all of you about sharpening and I think FOR ME I would like to go with a Chef's Choice for ease of use. BDL has suggested models (15XV, 315S, & 316) for possible use with my MAC's. Can I use any of these models to satisfactory change my edge on the henckles or should I get the 1520 to use to keep the 20 degree edge on the Henckels. I would like to save a little money and go with the 315S to sharpen both. Also, for me I like how my Mac's perform but I would like something more asthetically pleasing. I was looking at the JCK Gekko for a petty. Could I use the CC 315S to sharpen that as well? I know many suggest other systems to sharpen but for me right now I think I am leaning towards the CC's. Thanks for any help and advice.