Behold, it is the return of your Chocobo sage with new information following the update!
Please share any of your own data or theories regarding the effect of the Blue Racing Silks. The written effect of these is: Enhances Chocobo digging endurance.
If one digs on a chocobo with these on, you may sometimes receive the message:
"It appears your chocobo found this item with ease".
The above message can be obtained on either a rental or a personal chocobo. The rarity of the item does not affect the chance of getting this message.
Pre rollover I dug 80 digs with the message, 70 without. I was surprised by the performance, which allowed me to make it to a total of 150 digs, implying that digs for which you get the first message do not count towards the 100 dig limit at all.
After rollover this was confirmed by a 90:100 dig ratio, which cemented the hypothesis that the activation rate on the silks is 50%.
My digging is A10, but I doubt that the activation rate is affected by that. It certainly appears that it is not affected by whether or not one is using personal chocobo or not, and therefore not by the abilities of the chocobo.
In short, this gear can be considered to effectively double the capacity of their wearer to dig in any given Earth day period.
Feel free to add to this information, dispute it, or redistribute it as needed.
Edited, Nov 13th 2009 11:47am by Risae