So what is the difference?
Visually rendering shows a cleaner result, presumably a reduction in artefacts from the close to the knuckle high frequency response.
Not worked on time series.
Here we are for December 2010 (no old data version of Jan 2011)
A few minutes ago I looked at the Willis island data and thought wow! the cyclone eye has gone right over, confirmed by other people. Then news the station is disabled.
Checked again the data has vanished to void. Fortunately I dumped the web page to PDF
See various sites for news.