Oil burn cloud on engine deceleration

I've not typically seen heavy oil smoke like you reported from your tests on page 2 of this thread just from guide wear. Your guide wear is what I would call moderate. But I can not 100% rule it out; we all see new stuff everyday!

No smoking with hard throttle would typically rule out rings; it all points to the intake tract. I'd still be more inclined to look at the intake gaskets.

BTW, back on page 2 when you tested with no PCV and had lots of smoke under downhill deceleration, was the PCV just gone and the hose to the carb sealed off, or was the hose to the PCV still in the valve cover? Just checking to make sure I understand the test and what the results mean.