The Primos "trigger sticks" are great- I ALWAYS walk and stalk (and blind hunt some) using the tall version (two legged). BUT DON'T GET THEM WET (don't use them through streams or thick wet mud) as they will hang up and need to be disassembled and completely cleaned. If they JUST would use BRASS Vs. steel at the bottom, they'd be a better product as the steel "release" will rust on you. Still, they can be cleaned up and "reborn" with a little sand paper to polish the release mechanism back up (do NOT use ANY oil, just clean them, polish the "catch" a bit and put together dry and you'd good to go).
What I LIKE about the tall sticks is they they drop in about 1 second standing for me at 6'. I have the rifle in my right hand (or slung) and the sticks (half way down) in the other hand ready to completely drop and shoot in under 2-3 seconds. They ALSO go nice and wide, so I have used them in stands (or sitting) a few times. Head shot my buck a few years back standing prone at about 120 yards. Shot a nice mature buck in the neck (at 365 ranged) using them in the blind last Dec. They are also a great tool for setting your bino's on top of when glassing. Won't hunt without them!