Odd RSS Subscriber Stats

Update: dilemna solved

I am not quite sure what is going on with the statistics for the RSS feed I maintain through Google's Feedburner service.

However, as you can see from the graph, my reported subscriber numbers declined from 50 to 30 at the very point I moved GavinKnight.com from being hosted by Google's Blogger service to Squarespace.

I could understand the subscriber numbers for this feed steadily reducing over time as people move to the RSS feed(s) hosted directly here at GavinKnight.com - but a sudden decrease makes me suspicious that somehow Google inflate the numbers for their own service. Can you shed any light on what is going on here?

By way of context, I now provide the following RSS feeds hosted directly here at GavinKnight.com:

• Blog articles (articles from my Blog here at GavinKnight.com)
• Short Thoughts (daily collation of my personal Twitter stream
• Shared Reading (daily collation of my online reading shared via Twitter stream)

I will also continue to provide the following feeds through Google's Feedburner service:

• All Posts (amalgum of the above three feeds) (also available by email as a daily summary)
  • this is the feed for which the statistics are shown above
  • this was the feed for GavinKnight.com before I moved here to Squarespace
  • (I use Yahoo!Pipes to combine the three feeds above into one, which is then fed into Feedburner)
• All Comments (all comments here at GavinKnight.com) (also available by email as a daily summary)

I previously provided RSS feeds for each of my main topic areas, but decided to close those down when I moved my hosting to Squarespace.