So I have a Tekin RX8 Gen2 esc that I've been using and recently purchased a Savox SW-1211SG servo to replace a Arrma ADS-15M servo that I just threw in my old Associated RC8TE to get it going. Anyways, my question is...Does my Tekin RX8 Gen2 esc switch the servo voltage automatically to 7.4v or do I have to change it? I just want to get the most out of that Savox servo. Hopefully someone can help me out.

Reading manuals can be so satisfying.....

There is no way to autodetect whatvoltage a servo needs so you have to adjust it when possible, and that is listed in the manual.