i have mine cranked, probably 2.5-3" of lift right now and i havent had any problems yet, but of course i didnt do it the very best way...
You only need to index them if you lift beyond 3" I think, then the bars are seeing quite a bit of stress. At 2.5-3" you should be fine. People have been running it that way for years with little to no trouble. As for your car, the amount of stress on the CVs has a lot to do with shaft length. The shorter the center shaft is, the more the angle when you lift. Same thing with the cups. If you have short cups, the balls and cage can get pulled out to the edges and cause wear that way as well.
What we need for the VX is a longer set of A arms and longer CVs and a better way to do drop brackets. Unfortunately, the amount of aggravation it takes to come up with all that is almost as much as just doing a SAS, so that's why we see very little progress in the drivetrain department.