Very interesting to see that age distribution is essentially the same in each market.  Can we draw any hard conclusions about this such as "SA has become a viable alternative to unemployment for women between 18-25 years old during COVID"? Probably not. But I think we can use that as a reasonable assumption for now.  
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And given the lower level of black's in your local population, I'd say ethnic distribution is reasonably similar between the two markets as well.  
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So given these data sets, does anyone feel they need to change their strategy for searching, contacting, negotiating, or sustaining an arrangement?  
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I really have not, with the possible exception of doing extra verification of pics and contact info when provided, along with being open to a virtual M&G with no sugar. I have also started initiating contact more with certain POT's, mainly hot Asians. Note that I generally never initiate contact.  I prefer to let the POT message me 1st. Sadly, my attempts to initiate contact have not delivered any good results.  
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After all, as Pappy Sweet points out (you didn't think I'd let that moniker fade away, did you Pappy? , even a relatively small market can yield good results...if you have decent game.  
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BTW: For my new POT searches, I also use more restrictive filters. I used the more open criteria noted in my post specifically for sizing the overall market, with the exception of POT's 39 and up (because I'm not interested in MILF's or GILF's).  
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My standard search criteria is:  
Radius: 10 miles
Age: 18-38
Body: Slim, Athletic
Smoking: No  
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This generally yields about 870 results. Note that around 150 of these were active within the last 5 days - which is about as "stale" as I'll accept. When I don't see a lot of new profiles in the last few days, or I'm not happy with anything in the 150 (out of the 870-ish), I add body type Average, which usually increases my yield to about 1,200 results, with around 250 active in the last 5 days.  
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Do I live in Pussy Paradise? I don't know... but I do know that...
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Life is good
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The Cat

Thanks for pulling the data for your area. Very interesting results.
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I did not include data for a radius less than 25 miles in my original post. In my area, the percentages by age and ethnicity are about the same between the two distances (10 and 25 miles). But I should add the the number of profiles at 25 miles, about 51K, drops to just 2,550 at 10 miles. So I'm only seeing about 5% of the total 25 mile market.  If I expand my radius to 15 miles the total number of profiles doubles to about 5,700, or about 11% of the 25 mile group.  
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The problem with extending to 15 miles in Los Angeles is that those last 5 miles usually almost doubles travel time, from 15-30 minutes to as much as 30-75 minutes, depending on traffic, and specific location.  
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So my local "pond" remains relatively limited (relevant to LA) to the 2,550 within 10 miles. But fortunately for a nice, old, fat guy like me, that still enables me to tap as much 18-25 year old SB pussy as I can handle. And I can and sometimes do, expand up the age scale to include SB's up to 38. The oldest SB I ever had was 37, Asian and fucked like she'd never see dick again. Too bad her "kid baggage" ruined the arrangement.  
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How do you use this data?  That depends on what you want to accomplish, I suppose.  Do you change your search criteria to focus on the more populous demographic groups? Do you rewrite your profile to attract more of your preferred group?  Do you change the way you message (writing style, use of slang, contemporary references, comms tools/apps to be more user-friendly to your target group)?  Can you infer better why she's on the site by aligning her to a certain group? i.e.:  Why don't we have more Asians? Possible answer: Asians make up about 4.8% of the DC Metro area - according to Wikipedia. So they are only slightly under-represented on SA at 4.1%.
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Please experiment a bit and report back. Because any time you can take an SB BCD...  
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Life is good
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The Cat