JMann is correct. The length of the actual wire is what's important. I know not to tamper with that. Learned that from one of my cars when I first got into to RC. I think that my mod comes with the same "caution" as the Micro-Z,

"Note: In some cases the receiver range is slightly reduced so a range check should be done before flying." This came from the site that carries them and I figured the same when doing my mod. That's why I made most of the wire visible.