if you mass a ton of corsairs with full upgrades you could own his bcs (have a number of starports ready to pump out replacements for those that die).. in the meantime you make your main army of whatever you use and get it into his base (shuttles, recall, straight on force, whatever).. if DTs are really what you want to use, make tactical attacks on his science vessels, turrets, and engineering bay once you are overwhelming his base, and bring in your DTs.. i'm sure it'd work.. but i'm not a seasoned protoss player, so anyone else who gives you advice that contradicts mine is probably right 
If T is able to get BCs against you playing P, you're doing something wrong already. Open with ranged goons and obs. Obs to scout the terran base, and contain with goons outside his choke(if there is one). If T still gets BCs, you can use just about any unit to counter. Battlecruisers are a JOKE. Don't let them get the resources. If he turtles, then take the map and go carriers. Carriers > BCs as long as you don't let them get in range.(i.e. press A then left click on BCs while running away) Temps and Dragoons utterly destroy BCs. Fully-upgraded sairs MIGHT work, but stick to carriers, dragoon/temps.Ota said:
