I have two Slik 700DX and do NOT suggest you buy one.
My first unit is over 10 years old. It's bombproof, having survived being dropped repeatedly, dragged through the sand and mud, drenched in thunderstorms, etc. It even shrugged off a 50+ foot cliff tumble at Bryce with nothing more than a few new scrapes to show for my brain fart.
The second 700dx I bought about 5 years back, is a fragile piece of crap. While the legs tubing and frame are still very well built, the plastic sliders that lock the leg extension joints have gone to hell. TWICE, I've been gently extending a leg only to have the entire thing fall apart in my hands. The leg pulls completely out as springs and fractured plastic bits fly through the air. The first leg broke less than a month after purchasing the tripod. I hadn't dropped or otherwise abused it in any way, and I do not yank violently on the legs as I extend them. After repairing the first failure, I gave up and 'fixed' the second break by wrapping the leg with teflon tape. It's clear to me that Slik has gone the CHEAP route with the components, resulting in a fragile, unreliable, and therefore useless product.
IMO, the 700DX should be AVOIDED at all costs.
"Consulting the rules of composition before taking a photograph is like consulting the laws of gravity before going for a walk!" - E. Weston