Best firmware for Gigablue trio 4k

Good evening....

I dumped the nino pro because i felt that getting a 4k could be a better choice... got a gigablue trio 4k. it's budget but seems to have a good hardware.

Even if i a noob, I was hoping to set it up just as i did with Nino, which i had running openatv 7.0

Even if i managed to get openatv 7 installed (and it was not easy at all, USB procedure did not work) im disappointed.

ATV7 does not seems to be nearly as good as the "stock" firmware. It seems higher resolution are not supported (thence making useless to get a more powerful device) and also some emulation software management is not supported . Hints on a better choice of firmware to install?

tnks

*edit : thanks mod for moving to the right place

Im now learning how to make multiboot work; i agree it looks the best way to have one "that works" and fiddle with the rest without many concerns.

thank you :)