I have a new bass on order and the luthier installs GHS Progressives as standard strings. He contends that they not only feel better than either stainless or nickel, but are slicker (faster) and last longer. He credits the Alloy 52 as being the main component. Anyway, what's the consensus on these strings? I'm trying to determine if I should stick with my DR Sunbeams (which I use on my other bass) or have him go with GHS Progressives.