I keep a stash of Commonwealth on hand. It's an all day smoker for me but not everyday due to cost and availability. It does need a bit of drying time, load the bowl let it sit around for about a half hour ( here in Anchorage anyways, which has a cold desert climate ).
Simenon, to me Balkan Flake tastes lighter in both the Lat and overall flavour. Commonwealth is quite the Lat bomb, but even so there are woodsy and sometimes even sweet notes to it, and a very smooth profile. I have smoked Lat bombs from this side of the pond that are rough, except of course Mr Pease's creations. Commonwealth is similar to GLP blends .... imagine GLP Westminster without the Orientals ( not that they're all that noticeable anyway .... )