Yanmar injector mix ok?

[Canibul]

Still chasing little gremlins around the old 3HM35s and today was checking and cleaning carbon out of pre-combustion chamber. Do little globs matter?

While examining injectors I noticed that one of the 3 had a different appearance.
Further examination reveals that I have two injectors marked "E0" and one marked "E5", cast into the body.

Would this mix of different model injectors cause issues with performance?

If 5 is richer than 0, it might explain some rough idle smoking low power issues for me.