Was it me, or did pings go from 200+ms to 50ms?

Last couple of days I've been getting 200+ms pings to my linode in Dallas, and today I finally took the hit and asked to be moved to fremont (I'm actually in SF, CA :D). I didn't really want to change my IPs. But then today I ping and notice 50ms again, like I used to have when I just got my linode a month ago. Was it me, or was there some network mixup that they just fixed? anyone else have similar experiences?

I'm going to go ahead and move to fremont, though. I'm getting 30ms pings to their servers. I anticipate lightning fast SSH :D