The 2013 C-Channel Proton Power is a re-release of one of the most popular heads of all time. The STX Proton Power was a dominant offensive head and has been revamped for 2013 with a ton of new features. STX added more stringing holes which the Proton Power desperately needed. Also, the C-Channel technology was added which makes the head stiffer and more durable.
C-Channel Proton Power Tutorial: Mid Pocket 15mm East Coast Mesh