Hey Mikey....Hey Man, have you had any leaks from heads or rocker box in the past?
Nope
How many miles ya got on that good looking ride?
25K+
I don't have any advice to give; just curious about the history of this portion of your bike 
It started leaking on the front cylinder in August. It was 'bad' but that's when I first noticed some oil around the rocker covers.
I then took a 4K+ mile trip up into Michigan and did the Circle Lake Michigan Tour .......... a really kewl trip and fun time !! I posted up some pics somewhere

Then after I got home and was doing some local riding it has gotten to this point

But since I'm so close to my build time (in December) I wasn't too upset about it cause I knew that it was all coming apart anyway, so no biggie.
My biggest concerns now are, getting it apart without having to remove the engine, getting it back together CORRECTLY, and NO LEAKS for 10's of thousands of miles after it goes back together