What are you roasting today?

[jonumberone]

When I got home last night, I couldn't wait to fire up the roaster







Now being a total noob, I have some questions.

I thought the beans would look more uniform in color, is this a correct assumption?
I was shooting for a city roast and stopped after what I thought was first crack.
How subtle a sound is first crack?
The cracks I heard were very distinct, and immediately afterward the roaster started smoking like crazy.
I feel the roast is darker than what I was shooting for, but like I said, I stopped after what I thought was first crack.
Any chance I missed first crack and roasted to second?
I choose a 1/4lb to roast and eyeballed it.
Should I buy a scale and weigh precise amounts?

Thanks in advance