Jag will definately out grow them. GT's have cycles in which they will grow for a month or 2 and then just stop for a while then a little more. JD's are a moderate grower probably .5" month.
Jag in my opinion since i have had the terror and jag growing out about the same time.... the jag got to be about 4 inches and then it slows down a bit and comes in bursts..