Rebel my good friend + back atcha. I've been been meaning to try some of those beef proteins myself, have you tried any yet?
I tried carnivore (got it on the one a day special). It is an odd tasting protein indeed but nothing intolerable. I recently added carbo gain into it just to see if it made it more palate-able and it did to a degree. I only used this as my post protein. I have been doing GVT training for 5 weeks and the first 2-3 weeks I had some significant soreness as to be expected when changing any routine. The last two weeks is just like before I changed it up...work hard still and feel little to nothing in the way of soreness a day or two later. I kind of like the soreness it makes me thing I accomplished something at least.
Protein is kind of like taking multi's and fishoil. I don't really notice anything, but if I am under consuming protein in whole foods and not wasting muscle mass or losing strength than I guess it is working.