1. Sort by last active
2. Exclude smokers (unless you smoke)
3. Exclude children > 0
4. Exclude Heavy Drinkers and / or Non-drinkers (just because she's under 21 wont mean she doesn't drink) based on your preference.
5. Cut the Practical's out. No need to include these if you have so many opportunities at lower budget needs.
6. Remove the height filter - unless really short or tall chicks bothers you
7. Cut the Average body types out - too many "high self-esteem" chubbies call themselves average. Note: This may cut some "low self-esteem" hotties out. You WANT these, as they have lower expectations for sugar + perks etc. So experiment.
8. If you still get too many within 25 miles, cut it to 10 miles.
9. If you still get too many, cut the age range down to a span of no more than 5 years - up to you if that's 18-23, 23-28, 29-34 or whatever. If that doesn't get you there, make it 3 years.
10. Understand that "mixed" race often = black + something. Up to you to include or exclude based on your preference. Just my personal observation (in Los Angeles) that I see POT SB's who are afraid of listing as black because they think rich white guys will filter them out (I don't - #1 in my rotation is black). So they list as "mixed."
If you get the list down to 125-200, you should see the top 25-40 are active within the last 1 to 15 days. The more recent their log on, the better your chance of getting a response.