For those who didn't understand the reason for bismuth bronze, I don't either.
1 cassiterite and one native copper + 1 fuel = 2 bronze bars
1 cassiterite, 2 native copper ore, 1 bismithine ore +1 fuel = 2 bronze bars + native copper ore + bismuthine ore, if you're lucky
1 cassiterite + 1 fuels + 2 native copper ore + 2 fuel + 1 bismuthine ore + 1 fuel + 1 fuel = 4 bismuth bronze bars
However, the main point is that appearantly cassiterite is cheaper than bismuthine correction, bismuthine is cheaper. However, the need for so much extra fuel (5 instead of 2) will either mean more time spent woodcutting, or spending a lot more points on fuel, more than you saved. I consider it more point efficient to make bronze. The value of the item after it is crafted is only of importance if you want to trade it away or want to raise fortress value fast, which is, as far as I understood, not the main goal of the tricks.
I Usually get iron ores to make iron picks and iron axes. They'll be of some quality and miners level up fast, it makes for a good initial militia. After that I focus a woodcutter/carpenter to make beds so I can make a fast dormitory to decrease unhappiness in the beginning. The farmer goes to preparing the farm asap, but is otherwise part of the mining team that digs out the various storages. Small in size at first (10x10), the are expanded later. Then comes the carry rush to get things inside. Stone collecting and getting wood inside is the absolutely last thing that is done. After that, whatever I feel like. Currently I'm having a great idea on how to flood the entire courtyard mith magma. Or my whole courtyard and fort. We'll see