Glad you solved your problem, Kev. I'm having plenty of difficulty with the spikes on my M60s. The threaded rods in my speaks are set too high in the cabinet for me to screw in the short spikes. Service manager and all-around pleasant fella Joe suggested over the phone that I try screwing in a longer bolt in an attempt to "pull" the threaded inserts down, that is to say, closer to the bottom of the cabinet, but I had no luck; those things wouldn't budge!! Anybody have any suggestions, or can anyone give me an idea as to where I might purchase some longer spikes (say, as long as the bolts supplied for the rubber feet, which I am now forced to use. Not as stable as spikes, I must say). Cheers!