Harboursmoke has obviously had the same experiences Ive had. The obvious positives are : less traffic on them, and Ill say it because Ive tried both. The SBs are far prettier with better bodies and by my experience far better skills with less hustling. The negative is you will invest more effort into finding the ones you wanna stick with. I do have some favorite SP's also. Lets just say there is a huge difference between an SP that can't go hard for long because she has had 10 before you that day, and a regular girl who makes an arrangement to meet and play in the evening after a work day at a regular job