the albuns will get the same gain in loudness when being encoded, but I'm not sure.
I don't think so. I have one album in particular which has a lower volume level than other albums I own and when ripped via grip no normalization seems to happen. Of course I use the default cdparanoia ripper so who knows.
I asked if you had found a solution because a lot of the podcasts I download have that issue. They'll talk a bit and when they go to play a song it is much louder than the talking. I constantly have to turn the volume up/down to compensate.
I've tried using normalize with mad support and I don't notice a difference. Oh well, back to the drawing board. If I find a solution I'll try to remember to lookup this thread and update it.