Suggestion 12000XP and Generator Switching

Does anyone have a large inverter generator where this is happening?  I have a new 12000XP V2 and an 11kW Champion inverter generator.  Before I get my generator inlet installed I need to figure out if I can use the 12000xp's gen input with genboost or if I'm going to have to use a Chargeverter because of the issues you guys are having. 

I'll have to wait for better weather before I can do a test, but from what I'm gathering here, genboost works as intended, but when the generator starts and it switches from battery to generator, you're getting a 1-2s blackout?  This sounds similar to an issue I think they fixed in the most recent firmware, where if you were using battery eco mode without solar and lost grid, it would cause a 1-2s blackout when switching to battery. 

The Chargeverter is supposed to do a warm up and cool down cycle, so it starts your generator and waits before it draws any current, then before it shuts off the generator it let's it idle for a bit before shutting off.  Does the 12000XP not work like this?

I bought the Chargeverter already, but my wiring would be so much cleaner if I just used the 12000XP's generator input.  I also have all 50A gear for the generator and using the 30A chargeverter with this is going to force me to add a breaker box as well.