Who else is burning exhaust valves in a stock LGT??? Seems like it's not just me...

I have posted in the past about my stock LGT 5-spd turbo burning exhaust valves. Since I have more miles than most, I am now starting to see it's not just me:

http://legacygt.com/forums/showthread.php/bad-exhaust-valves-lgti-126764p2.html

The original post of mine from last year with details (& a bit of a mini-rant, too):

http://legacygt.com/forums/showthread.php/100-000-mile-2-5t-engine-valve-problems-120387.html

Any input appreciated, especially if you know a good Subie tuner in the Cherry Hill area (yes, I live a mile from Subaru North America).

Thanks - Jerz