Usually guys I always introduce myself when texting a HB and I have never gotten a response. It goes something like this..
"Hey HB6-9 this is PUA from XXX, we did this together and I hope you had a good night as I did! Wow so happy we met!"
These are always the texts I send initially to women and they have been going ignored and completely disregarded. The first text you guys send just send out the PUA stuff and go from there. Why? Because text her something and likely the response will be...
"Sorry, Who is this?" There you go you got your reply and then you can game her from that point forward seeing you have at least got a conversation going rather than the boring stuff I mentioned.