Sounds like you want a TS to invite you over at a reduced rate to teach you how to give a good BJ because you are giving pleasure to them? Now about giving a good BJ. If you are going to do something learn to do it right. Be the best. Read READ read. Reading won't help much you have to practice. I see Nadia twice a month when I am in LA. She gives me direct feedback as to how I am doing and pointers on how to work your hands. Use plenty of lub. I can now get a very fat 8 inch down. My jaw actually unhinges. I have had two ladies tell me that was the best BJ they have ever had. I did not ask for the feed back they just told me that as I was leaving. See Nadia she is a good teacher.