Alright I am planning on $150 for my next folder. I want something for camp/survival use. I want a steel that has good edge holding capabilities and decently easy to sharpen (s30v or vg-10? Maybe d2?). I want something in the 3.5-4 inch blade length. So far I have come up with the Al Mar Sere 2000, Benchmade 520 Presidio (possibly auto version) and thee ZT 0350. Any other ideas?