If I install a custom race mod

[ballsy]

...but don't actually play as and never select it during showracemenu (as in literally never scroll down and to the race) do I still need the racecompatibility plugins? 

 

http://skyrim.nexusmods.com/mods/24168/

[mijhou]

why you dont delete the race instead???

[Ark of Truth]

yes you still need it, but if you are not using it then just uninstall it.

[ballsy]

Older versions of ECE come with the ygnord race built into enhancedcharacteredit.esp. Slider values and facial morphs were updated and do not carry over from older to newer versions. In other words, I wanted to avoid updating so I could retain the same face. 

 

I have a preset file esp made pretty much a year ago for recreating my PCs face on every new game. Regarding active mod files, it's either taking up 2 esp slots and 1 esm slot with old ECE or 2 esp slots with new ECE. If RaceCompatibility files were unneeded as long as I never selected the custom race, then old ECE would only take up 1 esp, giving me even less of a reason to upgrade.

 

Anyways, solved.