+11 thing is only in the Distortion world and with Giratina, anywhere else it doesn't get the +11.I haven't heard about that +11 thing before, and I'm sure I've done abuse by opening the Journal from the bag and doing the normal amount of flips (ie not subtracting 11). Can anyone confirm either way?
http://www.smogon.com/ingame/rng/dpp_rng_part4
Notes1 When attempting to capture Giratina in the Distortion World, there are some important differences in RNG advancement that should be taken into consideration. Each time the Distortion World map is loaded, the RNG will advance by 11 frames. This is the reason that Giratina appears on frame 12 when you immediately capture it at game start. This would not pose a problem, but most people will end up loading the map twice — once at game start, before verifying their initial seed with coin flips, and again after cancelling the journal to capture Giratina. In this scenario, the RNG would have been advanced 22 times, excluding advances made by journal flips. The simplest way to deal with this anomaly is to consider the starting frame of Giratina to be 23 in cases where you will enter the game world, bring up the journal manually, and then cancel the journal before capture.