I cannot remember which vu+ you said you have, but I recommend downloading openblack hole for it.
Setting up multi boot. Then you can experiment with all the different builds.
It's dead simple to do.
On my vu+ zero 4k, I have openbh. openatv, openvix and pure2 installed on it.
I switch between them all for testing purposes.
Openatv is perfectly fine nowadays on VUs
