I've experienced some shoddy sites also - and agree a lot of the profiles are false.
We have a white labelled personals site at :
http://groobypersonals.com/
Obviously the models on the front page aren't in the site and it's just a representation but if you do, do a quick search in your area it usually shows who really is there. This is through the AFF network and the reason I went with them is that I've literally met dozens of transsexuals through it, both in UK, USA and Asia over the last 10 yrs. In fact, Bailey Jay (
http://www.baileyjayblog.com) we met on this site and a whole bunch of other models who weren't "professionals" but fancied giving modeling a go.