Hey there,
I used to use the Growth Masque (still have some left, actually). It's pretty good stuff if you need protein, although I've never used it (or any conditioner) on dry hair so I can't say how well it'll work. But, when used for deep conditioning after shampooing, I consider it a medium protein (it made my hair very strong) so be sure to follow up with a good moisturizing conditioner to avoid dryness.
If you try it on dry hair, let me know how it goes. So, you apply your conditioners dry and then you shampoo? Do you condition again after shampooing or just end there?