I do weather stuff - my favorite is Floquil "Weathered Black" applied with the Paasche. A light coat. Greg gave me a whole bunch of chalk about a quarter century ago, and that plus very light coats of Dullcote always produces nice weathering.
I only get serious about weathering when contemplating a contest. You cannot win a contest with a well built scratch brass locomotive; you can win by purchasing a factory painted import and weathering it. I know I can do it, so I am not driven to weather every single thing that rolls out of my shop.
But the Erie Berk will probably get the treatment somewhere along the line. I wanted to bump this thread with the pretty much finished Berk.
It has flaws - a big one is the location of the tender logo. How I missed that is beyond me - I seem to have gotten it right on the above 2-8-0. (By the way, I raised the headlight on the 2-8-0 to better match Jim's model)
And it still needs a bit of mechanism work, and a motor/gearbox. It does have an axle gear, which is a start . . .

Anyway, happy with this thing. I guess this pretty much closes this topic.