Hello Bzybee: I'm sorry I can't really offer much with regard to your concerns. Hopefully there may yet be other members who will have some similar experiences they can share. However I noticed this is your first post here on PC. So I thought I would say welcome to PsychCentral.
The only experience I've had that involved switching from one brand of antidepressant to another was with Cymbalta. When I started out on it I was on the name brand med. When the generic became available I switched to that. I never noticed any difference whatsoever. I also had occasion to switch health insurers, in my case, while I was on the generic. And when I did the out-of-pocket cost skyrocketed.
So at that point I went off of it. I no longer take anything.
I hope you find PC to be of benefit.