There is still a little bit of grey haze but I think it's just a little unburned soot in the exhaust.
No diesel will run
completely clean, there's always a tiny bit of smoke no matter what. It sounds like it's pretty well dialled in with the old injectors.
Lucas nozzles give MUCH more diesel than Bryce so the engine has drowned in diesel.
It's easy to be intelligent after the fact... I nearly replied to your original post suggesting overfuelling, since that was the only possible scenario I could think of which would produce white smoke AND power... normally, white smoke is a sign of failed ignition, rather than successful combustion of all the fuel & some left over! But... I wasn't confident enough to suggest it at the time...
I suspect you could use your Lucas injectors, but you'd need to work on the fuel pump(s) to reduce the amount of fuel injected. I'm not familiar with the TS engines, I believe with the CS engines this is achieved with shims (or is that timing? Someone correct me if I'm talking ballcocks).
I guess the other possible giveaway would be - are you getting a lot of fuel back through the leak-off pipes on the injectors? If so, that would also point to the fuel pump being unnecessarily generous. Just a thought - again, I don't know much (anything) about the TS engines, so just guessing there.