I spoke to a scheduler at this company. Here's what I found out.
They regularly offer A's, B's and C's during a three month quarter usually about three weeks apart for the different classes. They are also required to do one D (random A) and one E (random
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at each location within a six month period. The A's and B's are snapped up pretty quickly for most areas because they are really easy to do. The C's are a lot harder to schedule because most shoppers won't do them due to the expenditures and cash outlay required for each shop and the fact that you can't re-use your shipping materials from one shop to the next.
The D's and E's are usually not listed on the Job Board for a location until all three of the regular classes (A, B and C) have been completed for the period. However, you can ask your scheduler what D's and E's they have available and schedule them that way.
I am a little confused by MrC's response regarding the B (ReadyPost shops). The B's and E's are the only shops that don't reimburse you for a box purchase. They do reimburse you for the mailer that you pack your box into for shipping but not the box itself. The A's, C's, D's and F's all reimburse you for your box purchase, if required.
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One buzzard to another while circling high overhead (paraphrased), "Patience hell! I want to shop somewhere."