I'm using the 30" stands(your first link) with my 170's.
They match the asthetics of the 170's perfectly. I filled the larger, front column with sand. I also substituded the foam discs supplied with the stands with some rubber, flat-topped pyramid shaped ones. The supplied ones were too slippery and allowed the speakers to shift if bumped. I do not use any sort of Fun-Tac(Blu-Tac) material whatsoever and they stay put.
Ed
* Sierra-2EX's W/V2 crossover upgrade
* (2) Rythmik F12's
* Parasound Halo P6
* Audio by Van Alstine DVA-M225 Monoblock Amps
* MiniDSP 2x4HD For Sub calibration
*World's Best Cables Canare 4S11 speaker cables