the settings are not saved on the reciever its saved in the transmitter. you adjust the setting of each model saved on the transmitter. for example if you have two cars and you bind both recievers to your transmitter as model 1 for car 1 and model 2 for car 2 and make adjustments to your trims and epa's for each model. then happen to mix up model to car selection like selecting model 1 and then turning on car 2. you would be trying to run car 2 with car 1 settings and it would be out of wack. sorry if this confusses your more but i hope it helps.