Replying to Binding help (suggestions)

So the past 2 seasons I have had Dynastar PX18 xxls on all my skis. Due to being told they are pretty much bomb proof.

The last season the metal plate the rear binding slides on for adjustments has snapped 3 times clean.... I have just taken them off my skis as I am sending them back to dynastar... and noticed that both plates have started to crack again.

I am pretty much a pure big mountain skier, drop cliffs 30ft+ and although only weigh 70kgs I am a very aggressive skier (hense why I have the 18s). My Dins are normally on 15 (yes it is nessacary).


Besides the obv FKS/pivot 18s what else would you guys suggest?
Will be going on a 130mm waist ski and a 113mm waist ski.

(Sparknotes: Durable high din binding suggestions)