Ernie Ball has been around for 52 years now – can you believe it? – and in that time they’ve spearheaded some pretty revolutionary innovations in the string world, such as the Slinky range and the brilliant Cobalt series. The latter are incredibly strong, powerfully-voiced strings that pretty much refuse to die. So what does Ernie Ball hope to achieve with the new M-Steel line? Well, they feature new patent-pending technology based on a defence-grade alloy known as Maraging Steel in order to keep the strings stronger. By the way, before we get into the review: to celebrate the introduction of M-Steel strings, Ernie Ball is launching “M-Steel Madness.” Starting April 1st, fans will be asked to post videos or photos of themselves with their newly purchased M-Steel strings using the hashtag #msteel. One lucky winner will be chosen at random on July 1st, and receive a prize package of exclusive musical gear.