However, since you're always moving, and you're also doing WoTLK Gold and a speed run, then you do have this effect. Although Jewelcrafting could succeed. However, I would still suggest tailoring since this at at the average spellpower. It doesn't take into consideration CD stalking and other things that can occur when you cloak chant.

At the same time, you could get an effect that cloaks you in the event that combat isn't happening or maybe you're like me on your last casting or something similar that would waste a lot of the power of your spell. So I can see it in both directions. But the truth is that this is the table to be used occurs when massive gems are in the market for jewel crafting and you can see that tailoring has been accomplished a lot ahead.

If you really wanted to you could make the argument of making the switch to buy WOW WoTLK Classic Gold engineering and Jewel crafting until epic gems are out before you move into making and the art of tailoring.