I have a remora with an MJ1200, if I agressively skim I can pull about 2 cups of some stinky stuff per day. So with confidence I can say that the remora's are great. But it probably is overkill on the smaller setups.. If you keep up the maintenance on a bakpak you should have no problems.
Btw: the maintenance on a remora is the same, if not more. I brush the spray nozzle about every month. And I have to empty the collection cup daily if I skim aggressively.
The overflow box for the remora sucks too btw.. just letting you know the grass is not always greener.