TE/TC 2015 TC125 jetting and setup

My son is riding a TC125 and races enduro with it. He revs it out hard, and without going to a JD jetting kit, wondering what others are using for jetting on this bike. Also mix ratio. Just comparing notes. We run stock jetting and it is pretty clean, just wondering if I am able to get a hair more out of it without getting to close to the edge. We run Motul 800 around 44:1 ratio.

We just put a new plug in it which was pretty oily (we find that with all our bikes running Motul 800) at 33 hours.

Cheers,
Dale