I don't have a large volume of clicks coming in (~100 - 150 clicks per day), and if I analyze my Tracking202 logs around the time of the missing conversion, there wasn't a large burst of clicks. I'm not sure why this is happening.
Could it be because I am using shared hosting? If you're thinking "yes" -- keep in mind I have an upgraded hosting plan with more CPU/RAM, and I have very low click volume.
I want to get the opinions of others before I shell out $40/m on VPS. Thanks.