Lean condition under light acceleration
I just scanned through so forgive me if I am repeating anything. Here is your "base adjustment" for the metering rod tower.
Take the metering rod bracket and with your fingers lightly bottom it in its travel. Now, adjust the small screw in the center until the metering rod assembly is down as far as it will go. Next, turn the screw until you JUST see the metering rod assembly begin to rise. From there, raise the metering rod assembly by one full turn of the center screw. This is your base adjustment. From here, you can easily tune by raising (enriching) or lowering (leaning) the metering assembly. I would keep a log of how many turns you adjust each time (I would go either half a turn or a full turn) so that you have a record you can refer back to so that you do not have to make that base adjustment every time.
Again, I apologize because I cannot remember "which way" to turn the screw to richen or lean it. I THINK clockwise raises (richens) and counter clockwise lowers (leans) but I am not 100%. Just pay attention to that when you make your base adjustment.