The new nozzles are Bosch, as were those that I removed. I tested them using the bench-top injector pressure tester from **************. It worked pretty much like the videos and was straightforward. New spray pattern much better than old.

Took it for a 10 mile spin, much at 70mph this morning. She is much rougher upon cold start than ever before (I have to give a fair bit of gas to keep from stalling) and WAY more smoke.
Runs great at speed and idles well once run, no more smoke.

I'm not convinced all is right with the system given the issues at cold start. I'll put another 30+ miles on her today at speed and see how things go.

Any insight on diagnostic measures I might take would be much appreciated (identifying 'nailing' injectors, timing on chain, timing on IP).