That sounds really good in the yt clip Neilw.
Bang on the money for carb balance, so much so that I wouldn't change that at all.
From an interest point of view to us out here, a clip of it with gauges hooked up to show what they read would be interesting. But I'd not change the balance set you've got .... even if the gauge suggest any variance.
Well done with tbe detailed work, very frustrating at times, isnt it? That's very good progress there that you've got too.
"White smoke " is just vapour from combustion before the cylinders and exhaust have got fully warmed through. That'll disappear when fully up to temperature, perfectly normal from cold start in engines.