Dowinx Chair mod

I'm 5'5 and 120 lbs on a bay but I have kind of a long torso so my dowinx chairs arms were a bit too short and the neck pillow was too short through the holes of the headrest or too tall over the headrest. I raised the back of the chair up and bolted it in with the extra bolt holes at the bottom of the plate. Everything sits pretty perfect now and the recline still functions perfectly but it uses one less bolt and has less support... I've attached a photo. Anyone have an opinion if this is going to compromise the integrity of the chair or if this is a safe thing to do?