The fact is there is so much more to an effecient balanced set of injectors than nozzles. And the quality of the work on the nozzles is a huge factor too.
In my experience, a perfect set of small injectors will make a better driving experience than a slobbery poorly built set of injectors that have a higher flow rate. 90% of fuel injection reman people can't do more than know they work when they are together.
Let me give an example. I was fixing up a nice little F250 for one of my foremen. After checking compression we decided we didn't have time to work on it, we were behind on revenue equipment much less supervisor trucks, so we took it to a known diesel shop who agreed the the 160,000 mile injectors were worn. Long story short we got it back ran about the same, hazing at idle and missing a bit at times. After a long investigation of their supplier (big reman co in the LA area) and a lot of learning thru a call or two to Swamps (mostly because it ran worse with a Swamps HVHF IDM) I learned the reman company did not have clue of things like armature clearance, poppet valves, etc. When I informed them the injectors weren't right they said they would not warranty them for armature clearance, poppet valves, etc. because they didn't have a way to check! Long story short it was an expensive lesson on picking an injector builder that truely knows what they are doing. And there are maybe 5.