As above a couple of months ago I was going to look at putting some proper baffles into the rocker covers but got sidetracked when I discovered the driver side rocker cover couldn't be removed... finally got back to this task today.
Turns out the rocker cover will just sneak out from under the clutch master with a bit of wiggling, good start.
Passenger side cover has the filler cap, which is a breather. The original baffle supplied with the covers:
New and improved version:
Driver side has the PCV at one end. Original baffle:
Now has one that runs most of the length of the cover, hopefully this will minimise any liquid oil being sucked up:
The new baffles are aluminium but I don't have the gear to weld them and I'm pretty sure it would be a nightmare to clean up all the oil contamination. So I just pop riveted them which worked fine, the covers are quite thick and the holes are stepped with the rivet head on the inside so they sit flush inside the top rib:

A dab of black paint will hide them away when I get around to it...