tehy if you like, you could try a more stalish approach to Aerodactyl, because i know you love stall. Here is the set:
Aerodactyl @ Lefties
EVs: 212 HP / 112 Atk / 184 Spe
- Rock Slide
Use this with Hippowdown (you love SpD Hippo right?) and you are good to go. The Atk evs allows you to ohko Tornadus-T after SR. The Speeds evs allow you to outspeed him, and the rest are thrown into HP. Except from countering Tornadus-T, it can also counter CM Latias and any Volcarona, 2 big threats for stall. The SubRoost combo allows you to pp stall endless mons, such as the afromentioned CM Latias, the blobs, Gliscor, Heatran, Skarmory, Deoxys-D, EB Genesect (yeah you can do this if the need arises, you just have to get in safely), defensive Celebi, and Hippowdon. It can also help a lot against some stallbreakers, such as Mew and SD Gliscor, by Taunting them, and then letting you Roar them away with something else. You can run Whirlwind in the last slot, but i find Sub very useful for pp stalling and to avoid status, especially from Heatran (which you wall). Anyway this set appreciates cleric support, as then it can more easily switch into random Lava Plumes and stuff, without worrying about getting useless.
EDIT: Small detail. With 116 HP / 96 SpD in sandstorm you can avoid the 2hko from Scarf Genesect's Tbolt and Ice Beam, meaning you can actually counter him, with SR off the field, barring crits and status (which is likely, and the reason that i didn't suggest it as the main spread). With Ice Beam he only gets 8 tries to crit/freeze you, while with Tbolt he gets 12, due to Pressure.
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