Re: Gibson Flying V or Gibson Explorer
The reason Vs are seen more in "harder" music has nothing to do with design features. It has to do with rarity, and with when they were produced in numbers. It starts with the initial rarity of the Explorer. Flying Vs and Explorers were both incredibly rare in the '50's and '60's, however the Explorer was five times as rare as the V back then (about 100 Vs made vs. about 20 Explorers). Hardly anyone played them, because hardly any existed. The very few famous people who played Vs were very early adopters of those guitars, and they happened to be r&b musicians, because that style was popular/common at the time. I would guess that they picked them simply because they were 1) more likely than an Explorer to actually be found sitting in some shop, being more common, and 2) symmetrical. When the V was reintroduced, it was the late-mid 1960's, nine years before the Explorer was introduced. The blues-rock movement was at its height in popular culture, so more people who might be seen as rock, hard rock, blues-rock, and blues players took them up, in the footsteps of Albert King, et al. By the time the Explorer was reintroduced (mid 1970's), hard rock and metal were more popular styles among "rockers" than than blues and blues-rock. It's not that blues players naturally gravitate toward either of them for any particular reason of design. It's just due to the image that was established for Vs early on by a few somewhat high-profile artists, coupled with the fact that almost no one even knew that Explorers ever existed, due to their extreme rarity.
And FWIW, while I play a bit of metal and hard rock type stuff (mostly rhythm), I'm basically 90% an r&b and rock-n-roll guitarist, and the Explorer feels as much at home playing that **** as any other guitar I pick up. So there!
Also, let's not forget the Firebird, which is nothing much more than a "socially acceptable" Explorer. In terms of feel to the player, they're pretty much identical. They were pretty damned popular guitars in rock-n-roll, pop, and r&b circles. Among others who made heavy use of them during the '60's, Joe Messina played one on who knows how many (hundreds?) Motown r&b/pop records in the '60's, not to mention all his jazz gigs on the side.
One more thing: the musician most famous for/most identified with playing Explorers is in a power pop band, for Christ's sake, not a metal band!