[VFB] Rotary Vise Question of my own

[Chuck Alexander]

Are there any "cons" to a rotary vise?????? If so, what are they??? Also, I see 
these vises that have a stand instead of the "C" clamp to clamp them to the 
table...Do these not fall over sometimes when you are pulling a material real 
tight??? If so, when shopping for one, do you just try to get the one with the 
heaviest base you can get??? Thanks, Chuck