How is the Assault a far better built sled? Because it has a chain case and different shocks? The A arms are better? My oh my how fast people forget how weak those are too, they bend just looking at them. Trust me I know, owned an assault along with multiple pros. Bracing? There is only one extra cross support bar in the rear skid between the pro and assault (which I install on the pro as well). The tunnel, bulkhead, etc is the same. There is no doubt the WE Needles are a better shock for jumping, but the pro is a better boondocking sled due to its rail design (less tip up on the front of the rail) and the lower/narrower front end which makes it transfer and feel lighter on its side than the assault. For the money, the Assault is a good buy for a person that like to jump, but I still am partial to the belt drive pro for my type of riding. That is the question you gotta ask yourself before you buy.