After much research I have decided to buy a Tormek Sharpening system. The area I am interested in specifically is sharpening carving tools. I like to carve everything from relief carving to, woodspirits, santas, and snowmen for xmas. Right know I am carving a sea turtle. So a question or a couple of questions. Which model would best suit my needs. I am leaning towards the T7 but any input you can give me will be appreciated. Another question, is rust. How often would you recommend taking the unit apart and applying grease? Last question does anyone have experience sharpening micro or detail carving tools with the Tormek. Thank you.