Base pay meets my minimum, $20. They are easier than BP, EM and Shell mystery shop-audit. I do the Circle K and Marathon for under $20 because I can complete the shop and report in 30 minutes or less. Circle K and Thornton's, a new one to me, are covert shops. I don't do Citgo because their photo requirements make it hard for me to do it without discovery.
I did two P66s for $32 each plus reimbursement. The BP, Shell and EM shops are now over $25 total. So I've certified in all 3 and may be performing them this month.
Do not read so much, look about you and think of what you see there.
Richard Feynman-- letter to Ashok Arora, 4 January 1967, published in Perfectly Reasonable Deviations from the Beaten Track (2005) p. 230