Keep in mind a few things, though:
FSC upload speeds are better with FTP than they are with Zoom's uploader.
And the reason SCC may be slow is because SCC will only be as fast as the rest of the seeders seeding to you. The reason you see fast speeds on, say, EvoSwitch for private trackers is because the MAJORITY of the users on private trackers have a server/semi-dedi/RDP from EvoSwitch. Essentially, it's just people within the EvoSwitch seeding/leeching from one another, lot's of them. The traffic does not get routed outside Evo's network, resulting in what appears to be a fast speed.
An RDA is not meant to be used as a seedbox, not in our case. Our RDAs are primarily for filehost upload/download and thus far, that has been working very well for our existing users. Oh and the slow speed to FSC on one of the links is probably because it was routed to a slow upload server.