Another lean of peak question

[n86121]

The logical time to put in an engine analyzer will be during annual when the other things are being done. I just came out of annual, so it will be a while, unless I decide to ground the airplane for a few weeks at least.

For 25+ years I've run my turbo 337 ROP at 75% around 100F ROP. All has been fine.to get

I have a dual engine SHADIN (feeds the avidyne IFD).
I find the leaner engine and richen it to 100F.
Then make the richer one match that, the same fuel flows and keep my fuel math simple.
===

TCM in video and documents say that you cant hurt your engine at 65% or less no matter how much you lean.

I already have GAMI in front and rear (last annual).

So for an upcoming trip I could

OPTION A. Continue fast at 75% 100F ROP,
as I have for years, or

OPTION B. Slow a bit, at 65% or less and LOP until engines (w GAMI's) start to wobble,
then richen a hair. Remember, according to all sources, no detonation below 65%.

Keeping an eye on my single CHT for each engine.

What are the risks, if any?

What say you all?