Hey guys so I was thinking about investing in a knife sharpener for my knives. Don't know too much about them or know what's good or not. So I come to you guys.... What sharpeners do you guys own or use on a daily basis? How effective are they? What would you recommend??? Let me know thanks! Since I have primarily all Spyderco's in my collection and a few none spydies.... The blade steel on them are pretty much around the S30V-S35vN and a few m4's so if there are sharpeners that work better with these steels let me know! Thanks! Pictures would be much appreciated