No what I mean is something closer to how KOTOR handled colors. The color crystals had no stats, there were other crystals that did that.
What I propose is to separate the stats from the colors. Feel free to comment on this, but I imagine a 5th mod slot for weapons. You'd have the Mod, Enhancement, Hilt/Barrel, Power Crystal (holding the stats like 41 power or 41 crit), and Color Crystal (this would only change the color). This way things like the Pre-Order Crystal wouldn't become obsolete in 3 levels.