said by BiggA:I thought PB was uncapped? As in for the first 20 mbps, you could theoretically see 304mbps given the right equipment and system (albeit that's highly unrealistic, 50 is probably more realistic for that small amount of file transfer allowed under PB)....
Comcast capped residential PB some time ago. Business appears to be uncapped still though, provided you're on 22/5 or below. 50/10 and up has no PB. I just did a test on my 22/5 connection (was 50/10 until a couple of weeks ago), and it hit 82/22. On 50/10, it was fixed at about 53/11.
I know a few people in my area with D3 modems and Blast, and they get exactly the same PB/non-PB speeds as the OP.