I fitted a "Loobman"

and am doing 2000 mile between chain adjustments of 1/12th of a turn on the adjuster. I tried Maxima wax but was adjusting every 3-400 miles.
The loobman is very cheap (£17) and does not involve cutting into your inlet or electrical system. One squeeze when you fill up with petrol. That fills the sight chamber and that oil is evenly spread over the chain over the next few miles. I use EP90 which does not fling much but when it does it is sticky!

I think I will go back to engine oil.
On an "X" ring chain I am lubing the seal edges & the sprocket/chain surfaces. It does seem to slow down the wear.
I wont go back to spray lube
Jon