hello dmlong For the flaps you flip one of the servos with one wire facing forward and one backwards, that is one of the solutions using a y harness. i have a simple storch setup with flaps. and i do have them connected to two separate channels. I use a dx6e transmitter and an orange receiver . i don't know if the settings are the same as a dx8. here is how i setup my tx . go to menu and go to flap system and see what channel its setup to. my was on the D switch, but you can change ti to another one that is not being used. them go to system setup, and look for channel assign. i dont have a retract on my storch so the last two channels that are free are 5 and 6 select each one at a time and change them to flaps. exit the menu and check to see they work the way they are supposed to move. if one is reversed got to servo setup and reversed the one that is going the wrong way on flaps. also on the dx6e you can setup flaps if you assigned a three position switch to flaps, you can control the speed of the flaps to position 1 50% and them position 2 to go 100% and you can control the speed the flaps come down. hope this works for you