I agree with this post. The pre-order vender should have leveled crystals. For mainly one reason, yellow-black saber effect look very cool. So, to make sure that this does not become an advantage crystal, stick with the endurance and armor ratings and make the bonuses a little less than comparable to other crystals at their respective level.
I would really love to use this crystal for just looks and not feel like it's useless. A +4 endurance in a lvl 30-35 saber just feels wrong. But, say, a +10 endurance crystal (with perhaps comparable armor rating) in a lvl 30-35 saber doesn't feel so nerdy trying to sport a Yellow-Black light field. I hope you can find it in your hearts to develop some way to level up the pre-order crystal for asthetics sake so us nerds can have something (perhaps not comparable to other cyrstals at same lvl) that is useful.
Let me say it another way, I want to use my crystal and not feel like it's a piece of junk. We pre-orders got this item to feel cool with it. No one want's to use it after level 15-20 because it becomes useless and anyone trying to hang on to it is being nerdy by sacking attribs for the sake of sporting a saber light color. Please look into making higher lvl pre-order crystals and also for the other game packages that have special color crystals, we want them to feel useful and we understand the need to see them as an asthetic feature though still they should be somewhat useful for practical purposes solely because while sporting it one wants to use it in action and wave it around