765 Rear Suspension

Just noticed my bike is fitted with Lust Racing rear drag links. It looks a little lower than my son's 2017 RS so I'm assuming it has been lowered and not jacked up.
Does anyone know what the length of the standard drag links are so I can check to be sure.
Also has anyone fitted the jack up links and does the bike turn better?

 

So the standard length of the Lust lowering kit arms is 175mm and this drops the bike by 25mm. I am buying the Jack-up kit so these arms are now redundant to me if anyone wants to buy them, £30 plus postage, done 700 miles.