I have more heavy guitars than I want to think about, not purposefully mind you...it just worked out that way. My Teles made of ash and yellow pine weigh as much as my Les Paul and don't seem to be played as much as I get older and more decrepit. They seem to ring longer when strumed than some of my other instruments, but is that important when playing electric? Probably the smaller part of the equation and an insignificant part at that. They're just really nice, well constructed guitars that happen to weigh more than I'd want to shoulder for longer than an hour or two at a time. What REALLY helps is as much brass in your componets as possible including a bell brass plate for the back of your headstock
opps that was another mis-direct in 'The Search for Tone' hosted by Leonard Nimoy