I am going to invest in a mill but I am unsure as to which controller to put on it. I am only slightly familiar with g code, so I want something with a conversational controller on it. I like the fagor 8055 with all of its capabilities, but I see lots of posts here about problems. also what is the difference between the 8055 and 8055i? I do like the option of a 4th axis which I am told is synchronous, if anyone has it hooked up is it truly synchronous? I want to engrave pictures on the outside of cylinders. I know all of you are competent professionals, so I value your opinions and experience.