I saw your reply and read through all the updates that happened since my last post over a year ago.
The Lucas Oil products and heavier weight oil didn't make a noticeable difference for me after the first few weeks of driving.
Personally, I gave up and sold the car rather than put another 5k into it for the fix. It seems a couple other users did the same.
I sold the car to a friend of mine at a steep discount (basically the cost of the repairs). He was close with multiple mechanics and figured he would be able to get everything done much cheaper and resell the car. Afterwards, he told me it was a miserable experience and he lost money. They tried the simple fixes (again), and then when it came to actually removing the heads/valves the mechanics just didn't have the tools, making the job a lot more difficult.
I have kept all my repair invoices in hopes that some class action suit will be started for this issue... wishful thinking.