Sounds similar to mine when it was running rich, except it fell over at wot and tick over.
Later in the journey it was ok, is. But always struggled just before fully warm.
I don't give it WOT until fully warmed for a couple of miles, but the tickover sounds similar. Did you ever resolve yours (before swapping injectors)
Undecided on exact cause. It might have been running rich, it may have been the moto gas injectors, (so no)
But its fine with the new injectors and a retune by MrWood, where it was found to be rich. Very rich. Causing missfires and fuel trim. Fueling backed off, all ok. Maybe needs another tweak, as it pulls away more if you lift OFF the gas at certain rpm in the midrange.
I'm considering a dyno session to get it nailed down, its difficult to tell exactly what the tune is like from the software.
But I don't think there was much difference in performance given the drive home from Sereks. Tbh.