Truthfully, I am up in the air. I have used all three and haven't decided yet. Right now I am experimenting with two one-piece poles that don't adjust, $5 at a thrift store. I have used them for about a year now and am not sold on them. Although, I don't mind them either. When hiking with my dog, it is hard to hike on-leash with her and have two poles. Sometimes they seem in the way, and sometimes I see a benefit. I will keep using them for a little while longer to give them a fair shake.