I know sending a text will take SO MUCH of your valuable time, and if there is no response it will be the end of the DJ Universe, but fvck it. Why not?
I just reached out to one I flaked on 4 months ago. We're going out Saturday.
It isn't the texting that takes valuable time; it's the mental headache of dealing with some chick who is trying to play games/who flakes/delays/acts indifferent/etc.
What would you rather have:
A) An HB7 who is slow to respond, flakes, makes it difficult to nail down a date with, and who you feel you have to walk on egg shells around in order to get sex ...
or
B) An HB7 who is super responsive to your texts/accepts all of your dates/drops everything she's doing at any hour to drive to your house to give you sex/ brings you food/meals/cleans your house/gives you massages/etc. etc. etc.
When you text a girl who is demonstrating bad behavior (e.g. hard to lock a date down with, declines a date with no counters, goes hours without responding to text, etc. etc.) she's more than likely going to be the "A" in the above scenario.
Don't waste time with these low interest chicks ... find more Bs. There are PLENTY of Bs out there. Approach different chicks .. next bad behavior ... ignore indifferent/low interest chicks. Don't try to fight the uphill battle of raising some low interest girl's interest level .. it isn't worth the time investment.