I had previously been riding the Rome sds arsenal binding and it was great i really liked them. I broke them and i needed some new bindings and so i went to my board shop and they demanded i get a pair of the union force saying simply they were the best (probably over 40 top end bindings were there to). so i picked up a pair of white ones (this was probably around 2008). At first it was a little weird riding them i was used to no flex at all and i noticed on the union force the binding has that padding underneath it so i was a little higher off the board. at first it felt weird but once i got used to it i love it. it has the perfect base for all over riding. Im not much of a park guy i typically ride backcountry (as much as i can) or trees or any pow i can find and these work AWESOME. i have never had a pair of binding that allowed me to just whip fast turns and really dig in like these ones. like i said the base is awesome with its calibration. I ride these bindings on my 165 Lib tech skunk ape (10 star board) and my 163 never summer heritage and an older 169 gnu that is stiff and fast. it works great with all three sizes and riding styles the board gives me. Im 6'5 and have size 14 boots and i have the nike zoom force 1 boots and the larger pair fit great. its nice how adjustable these are they can fit just about anything you are looking for. Great sturdy build- have had no problems in the 2 or 3 years i have had them look great and are just sick. get these for sure. not sure if they are the best for park but they do everything else just perfectly for me.