Many people contact claiming to be tantra practicioner or have a big knowledge on tantra. What impresses me more is that they meant "tantra" as massage itself. They basically mean that "they have tried several masseuse and tantric massage" and that gave them knowledge about it. Be aware Tantra is a philosophy, not a massage. The massage is just a practice within this type of life and way to concieve sexuality, by consequence the only persons who really knows about tantra are those who has read and study the philosophy. Is your way of thinking and understanding sexuality the fact that will give you the grant. If you haven't been reading about tantra, gender studies could also help you about how to concieve our intimacy from  another persective. In any case, I don't colaborate with people who claim to know or other practicioners. I only do when I go to a seminar or a tantra center.