Yes, 35 is a good cougar starting age.
Let's see, what else has 11 years of playing in bars taught me...
They all lie about something. Might not be age, could be an STD or the state of their marriage. Be warned.
They have kids they should be home with, so there will be some guilt. They love to talk about them.
Facials = awesome in their book. Anal too. Likely they finally gave it to the husband as a last resort before the left with his administrative assistant, age 24.
They're all about dancing and acting 14 on the dance floor. They can all hold their beer. Most have nice racks, and cottage cheese asses and bellys they rarely show.
Buyer beware. If any emotions form, they'll want to nail you down fast, so watch the emotions. You say "love" and you are fcked. They're usually smart enough not to get pregnant by this age. Many are rich, and will buy you expensive gifts. Often their husband was successful and left them half of the $ and the hosue for the kids, and he's shagging Miss latina 2008 in a nice condo somewhere.
They're another flavor of woman. use caution but certainly proceed. Bottom line: less Drama, more miles.