If anyone can find the part number for the sticker I'm all ears. I never could. Not suggesting to make a "fake" front bar but they are the exact same part otherwise.
No response is possibly because people don't know...
The part diagrams have "stiffeners", "extenders" and "outriggers" around there. Can't quite figure which it is though
https://www.capitalseating.co.uk/recaro-rollers-backrest-tilt-mechanism
Haven't done it myself, but I'd look into that.
Curious how much play are you seeing?