Does anyone have any experience with any of the following three products?
http://www.amazon.com/Adorama-Camco...ETN0/ref=sr_1_8?ie=UTF8&qid=1335495242&sr=8-8
http://www.amazon.com/Zykkor-Shoulder-Stabilizer-Support-Camcorder/dp/B00573M8UU/ref=pd_cp_p_2
http://www.amazon.com/CowboyStudio-Shoulder-Support-Camcorder-Camera/dp/B0036NMQ7S/ref=pd_cp_p_0
http://www.amazon.com/Adorama-Camco...ETN0/ref=sr_1_8?ie=UTF8&qid=1335495242&sr=8-8
http://www.amazon.com/Zykkor-Shoulder-Stabilizer-Support-Camcorder/dp/B00573M8UU/ref=pd_cp_p_2
http://www.amazon.com/CowboyStudio-Shoulder-Support-Camcorder-Camera/dp/B0036NMQ7S/ref=pd_cp_p_0