I never tried the Adam's either, but with the Griot's you can use a wide range of dilutions dependin on how strong a mix you need. Even at quite strong dilutions it's very gentle on my LSPs. Mix it as strong as you need to get the dirt off.
I've sorta gone from one extreme to the other; these days I'm using a pretty potent mix; good cleaning, even with gentle methods and still LSP-friendly.