Euh, ca a changé apparement...
"Since maximum BRR is 20%, there is a limit to influence of LUK on your
accessory rise rate. Assuming the worst possible accessory rise conditions (RIS
0.1, RRL 69), the LUK required to max out the second equation is as follows:
0.1 + 0.1 * ( LUK - 69 )^2 = 20%
LUK = 83.1067359...
The highest effective LUK value for accessory rise is therefore 84, which
guarantees a rise probability of at least 20%. Any LUK value greater than 84 is
completely meaningless.
LUK modulated accessory rise increase is reflected in the displayed rise
probability menu of an opponent before you enter battle"
Voila, c'est toujours bon à savoir (si c'est vrai)