Running a servo controlled pv seems to me like fixing something that isn't broke.On the other hand,my '85 RZ had one and it worked ok,just not a revolution.
As far as FI goes,unlike the rest of you old(and young),set in your ways fossils
-I'm all for it-even if not a full DI system.Ski-doo's SDI (semi direct) is a great system too.Baby steps are better than none and sometimes allow for better development in the long run.