It has recently been brought to my attention that the Recaro ProBooster requires vehicle head support behind the ProBooster at all times. This is not in the manual of my ProBooster. As a matter of fact, my manual states the vehicle head rest can be removed to get a better installation. The vehicle that my ProBoosters are in is an older pick up truck with no head rests.
What I need to know is, does the ProBooster require the use of head rests? If so, when did this change take effect? And is it retroactive? If it is, why have Recaro ProBooster owners not been notified of this change? And lastly, if this is correct, then is Recaro willing to accept return of my ProBoosters and offer me a full refund since I clearly won't be able to use them.