Originally Posted by
Skyblade ^ You can do that, but it has problems. First, he spends a lot of sphere points moving backwards to get back to his circle (though you can negate that if you use spheres, I suppose), and second, the first circles of a characters grid are generally the worst. They are usually 1 and 2 stat nodes, versus the 4 stat nodes that are common in the later portions of most of the paths. It's certainly possible, it just doesn't have a lot of benefit to doing it that way.
Going backwards isn't the problem, all sorts of teleporting sphere's allow that to be fix'd simply. If anything, the one way I quickly boosted Kimhari past the rest of my party was saving most of his sphere levels (annoying to keep him alive because it made him weak while we where going through parts of the game but that's his biggest ish), then teleported to the end of people's sphere grids, let him get all the 4's and teleported him to someone's to gather up 4's once again. It took effort which could've just been on someone else though =P