Has anyone tried the ULTIMA Air Shocks that Sorgy and other dealers are selling on eBAY? They're going for about $140 / pair shipped. I don't figure they can ride any worse than the stockers, or at least the Street Glide or H-D Lowering shocks. But quality is always a question. Or, should I forget about air (and the hassle) and just get some Progressive 412s, 418s, or 440s? New to the forum, looking forward to hearing what other 'Glide owners have to say.