
If its a serious problem buy some slightly uprated gas struts.
Personally power tailgate is not for me again for
1: once locking keys in the car.
2: constant worry of opening with not enough headroom (dents in the Merc can attest) I have done it once and my wife twice.
3: faulty lock mechanics, twice.
Each to their own of course. Yes it is accepted than one can adjust the raise height but then, at over 6 ft tall the dents in the forehead became more painful than the weight of a tailgate and anyway, it saves going to the gym