I find the Suicide Rocker to be pretty sub-par. Sure, it's pretty much guaranteed to get Stealth Rock up and maybe prevent the other lead from doing so, but then it dies, especially with team preview, which I feel makes momentum much more important than entry hazards. Most people see Aerodactyl and think Taunt so they just straight up attack it anyway, and Aero's defenses are really, really terrible. It's pretty much 2HKO'd by everything, even pokes that aren't investing offensively. I've been finding bulkier, mid-game, Stealth Rockers to be more popular AND effective. I think the Hone Claws and Life Orb sets are where we should be looking for Aerodactyl. I also second the motion that Taunt should be replaced with Fire Blast, as even with Jolly nature, Aerodactyl is still able to 2HKO standard Ferrothorn even with leftovers recovery (although you're probably OHKO'd by Gyro Ball anyway) and does a number to physically defensive Skarmory. I'm not even sure if Roost is worth it as well, as the window for Aerodactyl to use it in is pretty damn small.