admranger - sorry for the late reply. Yeah it's right there and heaps sketchy haha.. I ended up having to drop the exhaust to even clean out the Allen key hole for the fill point cap screw due to it having a hard resin in there..

I've found on other research that the level is actually governed by the much larger plug on the bottom, right next the drain plug? It's the much larger socket head cap screw and inside that is a kind of snorkel that runs up to the top of the oil.. so when it's filled to the correct level it reaches the top of the snorkel and trickles down out the large hole... Anyone else do it this way?
I went off a DIY post on here and pumped the oil in the fill point on the side until it started coming back out there.. Now I'm thinking I might not have got the level exactly right if this other way is the correct way :/ (even though it's shifting better now and reduced the frequency of the shunt into first... it might have fixed it completely if done this other way)