I am using 2 BL ESC (LPR and HW) mix and match with 3 KO and futuba analog and digital servo (2 metal gear old and digital, 3003 also, KO 712), used for very long time already.
Pls go to futuba website to download a pdf which tell u what is Digital servo.
Thanks all ching, I have another question, I am using very old EX-5 AM29, but when I plug-in a MGPro servo it has no response. I remember when I bought my EX-5 20yrs ago, I need to modify Futabo servo plug (cut plastic edge and reverse two signal cable in the plug) to plugin the KO receiver. Can any ching give advise now ?