Question on V20 Ventrue weakness

[MyWifeIsScary]

If it isn't immediately obvious, use your ventrue dollary-doos to find horny singles in your area research locals that fit your criteria.

[Chris24601]

This is honestly one of the things I found a vast improvement in V5; sensing if someone matches your prey type and being able to feed from others by burning Bane willpower makes it less all or nothing.

The main thing in V20 is to just make sure your category isn’t something you could easily confuse; ex. prostitutes (if they take your money they’re a meal) or green eyes or red hair. The biggest unanswered question is how much of this restriction is psychological vs. supernatural... i.e. if a woman dyed her hair red is that sufficient to qualify or do only natural redheads count? (honestly, the answer probably depends on the particular vampire).

[Ipergigio]

About the weakness of the Clan Ventrue I've always considered it as something interesting and yet frustrating at the same time.
I mean, how can they understand if their victims are what they need?