I see the most girls.
1. Two years ago there was only one booker using P411, and that was in OC, but if you go to the agency websites, others are starting to get on board accepting P411. Most all of them will accept screening through your employment (discussed under #3) or by providing a copy of your ID.
2. The trick to getting a response is to give the booker everything he/she will want to know about you in a single text. (Or email if it is one of the orgs that use only email for the very first contact). Do not contact unless you are ready to request an appointment with a specific girl. You make your request, and if they don't recognize your phone number, they wiil tell you what they need in order to screen you. They may not respond the first time you make a request. If not, try again in a day or two. Keep your cool if it takes several days or even weeks to get a response. (This is one of the ways they test for LE. LE will not keep requesting if they don't get a response after a couple of tries.) The bookers are busy booking their established customers, so screening new guys has to wait until they have a lull in the day's activities. The best time to make an appointment request for first-timers is after 9:30. They start booking existing customers for the day between 8:00 and 9:00, depending on the booker, and things will be a little less hectic by 9:30. Here is a link from two years ago to a post that suggests the best format for a newbie to contact a booker the first time. There are some additional tips included to help insure your success.
https://www.theeroticreview.com/discussion-boards/k-girl-113/properly-formatted-appointment-request-----16432?frmSearch=1#16432
3. Employment screening is very discreet. You tell them what company they work at. They will go to the website get the main phone number for the company. They will call and ask for you by name. You answer, he will ask you if you are the one that requested screening, and then you are all set. They will NEVER tell reception who they really are or why they are calling. If they did, someone would post it here, and they would be finished.
4. Every Kgirl has a set structure for the session that is Newbie friendly. It starts with a shower and a short massage to let you get comfortable with them. From there, you can expect BBBJ, and then on to CFS. I recommend telling her when you arrive that you are new to this and they will be patient and accommodating. If you want DATY the first time out, just ask at any point, and they will allow it. It's a standard menu item.
5. You will have your best chance if you go for a same-day appointment the first time. That gives them the incentive to prioritize your screening so that they can fill any open time slots with your appointment the same day. This presupposes that you are available to go at a different time than the one you requested. This was always the most difficult aspect for me. I can rarely book a same-day appointment, but most bookers will not let you book in advance the first time at their agency. If same-day is difficult for you, then not more than the day before, but this creates no urgency for the booker to follow through on your screening right away.
6. Text is always best unless the website says first contact is email only or using their integtrated "contact form." Find the most recent TER review for a girl from the same agency as the girl you want to see, and use that number. Number's change from time to time for security reasons, so going back too far may not get you a current number.
7. Already provided a link yesterday.
These are the basics for each of your points. If you have questions or need further clarification, just ask.