There appears to be a .71 5th that is in the following transmission codes:
6G, 7A, 7D, FH, FJ, FN
Same conditions as the previous numbers I gave, it's 2907 RPMs in 5th. This is much less agressive, but on an NA diesel, a 143 RPM drop is still a big deal, and isn't too much. Roughly 39.5 hp are available at that RPM level, as opposed to 41.5 for the stocker's RPM level, and 37.5 for the GTI's RPM level.
Now, would someone with ETKA find out what the part numbers are for this gear set?