As a general rule it makes good sense to 'strut your stuff' with any new-to-you company or, as in your case, any company you have not worked with in a while. You need to build up your reputation/ratings with the company as someone easy to work with, competent and complete, timely and pleasantly responsive. Good ratings (whether you can see them or not on their website) build your reputation and make you more interesting to award more demanding jobs to. Now does the company have work beyond nickel and dime stuff? Hard to tell up front because frequently they limit what shops a given shopper can see. So while I will do a couple of nickel and dime shops, unless I have reason to assume there is something better I will get to see and/or self assign, I won't continue with the cheap stuff.
At this point there are a number of companies that are being slow to pay. Use the search feature on this or any other forum to look for recent experiences with a particular company. Right off the top of my head, the worst at the moment seems to be J C & Associates and aTH has been showing some 'issues' of late, though they are eventually getting stuff paid.