Right now many agree that the Omnibus F4 series is one of the best F4 flight controllers you can buy for the money. There where a few issues with the first few versions, but since V4, they now work flawlessly and this is the flight controller I recommencement to everyone. Unless you are a seasoned veteran of FPV racing scene, using an omnibus can be daunting as there is not much documentation. This guide will try to clarify everything. This article is currently written for the omnibus F4