I have recently gotten flow's 6mb package and for the past two days on it I have been getting relatively the same download speeds I got from C & W 3mb offering (330 down).
I have twice numerous settings using utorrent and no difference (the files I am downloading are from high bandwidth private servers with loads of seeders so I know the download can go higher), I have also tried TCP optimizer still no difference.
Speedtest done on flow's speedtest site and speedtest.net varies, averaging from 4mb - 6mb.
Can someone with a similar connection speed post or pm me their settings (specifically for utorrent client) or offer some suggestions.