Faster Internet Service, Finally

I have been using the Cablespeed "Lite" service for Internet for a while now as my cable provider is basically a rip off. I'm paying about $45 a month for this and the lite service only offers 128k down and 64k up. It's nothing great, but somewhat better than dialup and is always on. I am switching to DSL soon, but I need a new phone jack installing in the office, and since I am no electrician, I will be hiring someone to do this. I am going to wait until after Christmas once the finances are more stable.
But, yesterday, or maybe the day before, all of a sudden, downloads seemed so much faster. I just downloaded some podcasts, such as the new 1src podcast, and that 5MB file just zipped down to my computer. So I decided to run some speed tests. MDM has a speed test on their site, so I figured that would provide me with the highest possible speed. I ran that a couple months ago and got a reading of 140k. Today I got 377k. Awesome. So, I then went to DSL Reports to get a more 'real life' reading since their test servers are located across the country in California. Before I got a reading of 122k down and 60k up from there. Today I got 354k down and 116k up.
Not sure what happened, I never got any word from MDM about increasing the speed, and their website doesn't mention anything. I actually even called them up and asked if they had any chance of increasing the speed anytime soon, and they said they did not.
Whatever is up, I am very happy. Hope this is not just a fluke and will stay this way.