TableViewCell label format different between two different NSStrings - ios

Question

I am using a UITableView with a custom UITableViewCell. The cell just has a label on it for now for testing.
The issue that I have is that when I use the following code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
HZEventCell *eventCell = [tableView dequeueReusableCellWithIdentifier:HZ_EVENT_CELL_REUSE_IDENTIFIER];
EKEvent *event = [EKEvent eventWithEventStore:self.dataSource.eventStore];
event.title = #"Document re-write meeting";
eventCell.label.text = event.title;
NSLog(#"Event: %#", event.title);
return eventCell;
}
This causes my label to be offset when the app loads, hanging off the edge of the screen. If I pull the actual event data from my instance of the EKEventStore then the offset changes based on the event title. Some times the entire label is centered in the cell, other times the label is 50% off the left edge of the screen. If I print the contents of event.title via NSLog, there are no formatting issues that I can see.
When I use the following code.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
HZEventCell *eventCell = [tableView dequeueReusableCellWithIdentifier:HZ_EVENT_CELL_REUSE_IDENTIFIER];
NSString *title = event.title; //self.data[indexPath.row];
eventCell.label.text = title;
return eventCell;
}
the label displays the text without any issues. It's not something that I am doing with the events in my data source, because the above code has me creating a new event, setting the title and assiging it to the cell's label, which still gives me an offset. It looks like cell.label.origin.x is equal to -25p. Anyone ever see this or know why this is happening? My sub-class of UITableViewCell has no code other than an outlet for the label in the header.
Note that I have this issue in iOS 6, I just happened to be doing this testing using the iOS 7 SDK when I took the screenshot.