ive got the 3 main compressions, most trouble free for me is the ics then hic then scs.
ics is by far the lightest and best for making the headset spin perfectly then hic is the middle but needs oversized bars and all that so more weight. scs from my experience comes loose after a week unless i over tighten the headset and then take a few days to seat right but comes loose after 2 weeks anyway and is annoying with all that weight just above the headset. i have owned a tilt, phoenix and proto scs clamps with none of them bettering another.