@JayFB2 when you say "maxed out" you mean the arms are set as short as they can go to give you as much negative camber as possible with them?
I just recently bought camber arms for my coilover install and I had a look at a few different brands. I'm not sure which brand has the biggest range of adjustment.
I went with the skunk2 arms because they seem to be one of the best built/quality and now that they are installed I can see that they have a good range of adjustability.
I looked at the SPC arms. They are less expensive than the skunk2 but nowhere near the same quality and I didn't check the length/adjustability of them.