Well . . From my experience on working with plastic scale models . . I remove paint from plastic with Easy-off oven cleaner. It wont melt the rubber.
Tried this out last night and I'm really happy with the results.
Both sides sprayed and left to sit over night.
The next day.
This is after a quick wipe down with a shop towel. The writing (for the most part) came right off.
Sprayed a little more Easy-Off and hit it with the same towel to clean them up a little.
I'm really happy with how easy this was to do. Thanks for the info