Thanks for all the advice.
Today i took the rocker covers off and checked for play in the Hydraulic tappets at TDC. Both were rock solid.
I then ran the engine to check the oil feed to the rockers. I took a video of it as below:
https://youtu.be/zRTHb7ohw9USeemed to have plenty of oil coming out of the end of the rocker bearings. I did notice that most of it came out of the bearing on the valve side whereas on the sample video that was posted most of the oil came out the pushrod side. Not sure if thats important?
Maybe i should just order the earplugs and forget about it.