What would you guys recommend as far as stone advice for my knife kit? Currently I am strictly Takeda AS (7 of them). I have had two knives tipped. One still is ATM. The only stone I have is a 10k...which Ive used only on my straight razor. Would you recommend purchasing a kit, would you recommend purchasing used stones, would you recommend a ceramic rod? Currently I get my knives sharpened by a dude in Seattle when i travel over there to visit. I have to learn...Im scared to mess up, but I have to learn.