So sorry i'm posting in this old topic , but i get fed up with then the app stuff happening i decided to lower the numbers of retainers i have to 3 or 4 at max , to face inventories issues again as describe in the 1st post . i really wish we got any kind of info in the 2nd part of the live letter of 4.3 about this. and i might even start a newer topic since this one is 100 page or so. guess i see what the responds 1st tho.