Once a shopper develops shops with a good number of companies, all with varying payment terms, the important thing is to have reasonable cash flow, overall, each month. I just track what will be due each month and, if necessary, adjust who I shop for a bit to even out the cash flow.
HS Brands happens to have a few shops per month that pair well with other shops to may profitable one-day routes. Since some of those would not be profitable without adding the HSB shop(s), it is well worth my while to include them. Paid to park (plus reimbursement) in a city center, within walking distance of three other shops? Done deal!
Remember, logistics, logistics, logistic is THE thing that makes or breaks a day's profit; Do not Ignacio ignore an MSC that could make that difference. Especially, one that DOES pay, and often a bit above market standard for their assignments. (At least the ones that I do.)
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.