Hey Guys/Gals,
Look at your company rules. Forget what the ATC people tell you, if they clear you for take off and you do not think you have the required time because of vortex problems then don't go. Similarly, if you are behind a larger aircraft and you know what distance you require then ask the question to the controller. Do not put yourself or your passengers in danger by being under pressure to do your job.
Take out there.