"Yeah, if you're going to sweep, you might as well get the speed and lose the bulk. Also, why don't you change your Fire Blast and Ice Beam from you Tyranitar to Fire Fang and Ice Punch, therefore, you don't need to invest on Sp.Atk and build more on bulk and speed if need be."
"Wouldn't it be better to use Sleep Talk instead, so you can make a solid mono-attacker if you're going to Rest multiple times, and if you're going to use a awakening berry, why not use Lum Berry? Just in case you get poisoned, paralyzed or some other type of Status along the way. "
I'm not harassing you or anything, but if you don't know what you're doing, don't do it.