Renee: While you can find companies that will give new shoppers a chance to prove themselves, many companies want you to have a track record with them. You can luck into some high-paying shops, but expect to put in many staff-hours on low-paying ones.
A person may be smart and have an impressive background, but it does not necessarily translate to a reliable shopper. The MSC cannot know a potential shopper's flake quotient. She may not write well. She might not have come out of the shop with the correct information. It's amazing how some shoppers go in with their own idea of what they are looking for instead of following directions. Then the editor might need to contact the shopper for more information. That extends the turnaround time.
If the shop has to be redone, the scheduler has to work harder for the same pay, the editor has to rush, the client gets the report late, etc.
So, give your best to the shops you do, even the low-paying ones. Someone might notice. Follow directions. Expect stumbling blocks. Get Silver-certified. It's only $15 and shows intent.
Renee, you were lucky to get $20 in addition to your hotel reimbursement. If that was for Freeman, you'll be even luckier to get paid. (Actually, I think shoppers are getting paid; it just takes 5 to 8 months.) Some hotels do pay more, but most of the fee is in the reimbursements.
When you apply to MSCs, make sure your sample narratives are thorough and impeccably written. Use proper punctuation and grammar. Even educated and/or professional people can lack good writing skills (not that you do, but it's true).
Good luck to you.
Jamie
Editor and shopper