Both have their pluses and minuses. The balljoint units are generally easier to adjust but the added height of the unit can smack the shock towers on aggressive drops and then there's the issue of install (press fitting). The anchor bolts are pretty much the opposite but their major draw back is that they generally don't offer the range of adjustment that the balljoints do (although I see this is not the case here) . Currently I run the Skunk2 units (have been for a year or more) and am pleased. I also wonder about how the movement of one point (balljoint unit) in the suspension geometry compares to the movement of two points (anchor bolt moves entire arm away from body and therefore balljoint as well).