I'm looking into getting some trekking poles this year. After reading about them and having a buddy have them on a hunt last year I think I want to give them a try. A couple questions, what style does everyone like (sections that slide within each other with adjustable tabs or the interlocking ones similar to tent poles) and what type of grip does everyone like (cork vs foam and straight vs the ergo look)? I'm sure its mostly personal preference, but any tips? Any tips on determining height? I'm 5'10" with longer legs and a bit shorter torso and fairly long arms (thanks dad)