Well done. For a beginner your lathe work looks very good. I've modded one pair with plastic cups and have another pair of T50 to convert to woodies but lack of time has stopped me.
Modding affects the efficiency of the cans so you'll need to do them both to know for sure if one is off balance. I'm guessing that if they weren't off balance to start with they won't be off balance when you finish.
Thanks! Youtube videos helped. And though i turned my own baffles too, i figured it'd be easier to keep them in spec if i just printed them at work instead (we have 3d printers and the build material is super dense so it should better than wood)
As for the uneven signal...that's true, i guess i should just finish it up and see eh?
I wonder if anyone would object if i put a picture post up explaining how I did it. I know that people want to protect smeggy's intellectual property (as do i).