If you promote ARS, my tours are converting quite nice:
Auntie's Marmalade 2 - mature/granny
Mothers Lined Up For Sex - mature/milf
the first is around 1:250, the second one is more promoted and for over 3 months now keeps 1:150 ratio.
If you don't promote ARS, you could,
http://www.adultrevenueservice.com - ARS with my ref code
http://www.adultrevenueservice.com - ARS without my ref code