Chase you commented" the women I spoke to for longer periods of time, and seemed more into me, ended up being less likely to ever return my phone calls or texts."
I find this true along with any communication (text, phone conversations, emails, etc.) prior to the date/meet-up because essentially she's getting to know you and figure out if she actually wants to waste her time to meet up with you. Also this reduces any build up she may have for you and takes the mystery away from you. Like you said, just use it for the meeting. This way she sees you in person and you have a better chance to bed her even if she doesn't like you enough to be long term. When doing any communication prior to the date, she's thinking about are you worth the time.