Its not good if you are adding junkcode from a page or with "Auto junkcode".
You need to make your own type, call it on specific places.
Loader is more important then the cheat itself.
Protect the loader, use a UD method of injection and you will be good.
Regarding encryption, i personally recommend Themida or VMProtect. Depends on loader.
Also make sure to use latest whatever you pick.