I am using the TT pronghorn SL and wish it was a full containment. I put moleskin on the launcher arm to quiet it but that wears out fairly often as I shoot most days.

The arm on the FC is much wider, has a rubberized finish to make it quiet and it has the housing that holds the arrow in place. To me it looks good but I really prefer to get some real world opinions before I spend $110 on something.