OHHHH....that whey your were talking about was pure concetrate. Yeah, I can see how that would taste not so good. Not that I care
. The wheys you are comparing it to like ON are not pure concentrates. They are mixes of concetrates, isolates, and hydrosolates. Sure, they're prob mostly concentrate but....
I would get the cold-filtration. It's the cheapest and it's a good isolate. It's probably less-denatured so might as well have it not that it'll make a big diference. As I've stated time and time again...if the manufacturing process of your protein SUP makes a difference, your diet must be shitty indeed.