DiabolusInMusic
Functionless Art is Merely Tolerated Vandalism
So far the only thing this thread HAS proven is that quite a few Jaco fans are also huge fans of logical fallacies.
I don't mean to be rude but I don't think you understand logical fallacies.
Jaco was hired for his groove time and time again, much like any other name player in R&B/soul/funk. You've even acknowledged that some of his tracks groove, indicating you are aware of his groove. While Jaco didn't groove in every song he chose whether he wanted to or not. To say Jaco lacked groove is misinformed.
Maybe you're just applying some strange notion of groove which the rest of us are uncertain. If this is the case I would encourage you to elaborate.