Bulk Whey Protein Extraction/Filtration

Anybody out there that understand about whey protein extraction/filtration methods?

I’m gonna buy some whey directly from the manufacturer and for now I have 2 options that I’m in doubt on which one choose.

First one is Glanbia and the second is Hilmar.

Each whey has a minimum of protein they guarantee, someone told me the Glanbia one is 80% but sometimes it comes even with 70% or 76% or protein while the Hilmar always come with at least 80%.

For extraction they use Ultra-filtration on Glanbia and Cross-flow on Hilmar, I was looking about both but couldn’t realize which one is the BEST, only found that they’re seemed.

It seems Glanbia comes with more aminoacids but I don’t know if really if it will change a lot if it comes with 70% or 80% protein. Also gotta check which extraction process is the best as something tells me that not always the quantity of protein/aminoacids is synonymous of quality.

Here I have the tables of both wheys, if someone that understand a bit about it could analize for me and tell me about it I’d be very thankful.

Hilmar:

http://www.hilmaringredients.com/ManagedFiles/38e5e910-987a-49af-a04a-7262bd9d7be0/Hilmar8010.pdf

Glanbia:

Thanks in advance!