My biggest challenge is getting faster getting in and out cuz these folks tell me EVERYTHING.
Sounds like you just need to learn the technique of controlling the conversation by asking questions. When the prospect wonders off into netherland, you merely say, BTW Mr Prospect, could you tell me more about what concerned you enough to send in the DM card...? [or whatever subject or area you want to redirect them to]
The person who asks the questions controls the convo.