Most servers on big bandwidth use Deluge torrent software. It gives 1% priority to the upload seeding when it's downloading. Once the download finishes it gives 100% to the seeding, that's usually why you see huge jump in seeding once the file is completeI can see where your coming from mate, but it doesn't have to be at 100% for the speed to increase..
Anyway at 35% at the min, so it's moving nicely ( ͡° ͜ʖ ͡°)
If you tell your torrent software to only download the 02 RACE file only it should be at 80% ish or so (tell it to skip pre race and post race)