Yes, it is a pain. These are the steps I think -
1. Fill the work experience in your profile
2. Tell your sponsors to fill the sponsorship form
3. After the second sponsor fill the form, CFAI will review the work experience. It would take 2 weeks, although they say that it take 4-6 weeks.
4. After that your local society will review your application
5. If all that is gone favorably, you need to pay the membership fees and then you get the charter.
Two of my work ex were rejected because they were too brief. I modified them and now waiting again for them to review.
one needs to be a charterholder and one either a charterholder or your supervisor.
funny thing is that you don't really need to know them prior to them sponsoring you.
if you don't know them all you need to do is send a description of your work and then they have to decide if they think you work qualifies or not
Just a hint: put enough details when entering your work experience. I wrote sth like 100 words for each job description, focusing on its relevancy to either research, analysis, PM. You'll be happy not to be obliged to give more details once reviewed, and then to wait another 2-3 weeks to get your email approval to use the designation.
Aloha