So you second the suggestion to ignore what the engine manufacture say to do while breaking in their engines
why would they bother to print specific guide lines about running them rich for break-in then just to humor us.
But ya know what? model engine makers have said run um rich long before AlGore invented the internet
making it so easy to spread misinformation
I'm going with the engine makers surely there smarter then anyone on this forum when it comes to whats best for their own engines