A shotgun response (covering several issues at once) - first, I don't think it's good taste to ask exactly what anyone gets paid. Firstly, if you want to know, apply for the job and see what is offered. Secondly, like all fields of endeavor with competitors in the same field, pay scales vary Thirdly, one has to account for experience level. If one gets $20 an hour, that doesn't mean they all do. That one scheduler may have 10 years of solid experience with solid results. Would you like me to ask you exactly what you get paid (assuming you have a full time job in addition)? My feeling is that is too snoopy. Now, with regard to bonuses - don't concern yourself with that. The longer you are a MS and the more schedulers and editors you develop a relationship with (and you will), you will begin to understand that usually they get a fixed lump-sum amount that can be used for bonuses for a month. If bonuses are given too soon or too easily, by the last third of the month when the client's due date is near and open jobs have gone wanting for a long time, the scheduler would have to have enough reserve left to provide not only the bonus but, in some cases, a bonused bonus. You can see that with urgent requests for a shop that carried a, say, $10 bounus to be done immediately, and within 5 days the same shop is re-posted carrying an additional $5 bonus because they HAVE to fulfill their commitment to the client by the required due date. And then, what about a shopper who has to drive WAY out of their way to do just that one shop to help the in-trouble MSC. There has to be extra funds available to cover incentive pay for gas, etc. So, point in fact, it would be bad planning to, say, bonus everything right out of the box and get them all done right away at the beginning of the month (which, given the vagaries of shoppers, would be impossible). Finally, having been in sales and later owning my own business, my hunch is that the schedulers have incentives for awarding as few bonuses as possible. After all, the MSC has to stay in business, too. It's a tough job weighing all the factors and hitting a happy medium that satisfies most requirements and most shoppers. I wouldn't want the job, myself. Whatever they earn they deserve and I don't envy them if they earn more than I do. But then the topic of what editors earn has be considered also, which wasn't even brought up. There's another intricate can of worms. I know that most MSCs de-incentivize editors if they miss deadlines (such as getting the report edited and out of their bin the same day). So unless a person really wants all the additional headaches, one is better off just doing a great job of observing and reporting and be worry free after that.
Sorry for the long discourse, but I used to have the same concerns and, with time and experience, have learned and "intuited" the above.