LogFAQs > #963159863

Switching colours in draft is a pretty hard one, I don't think there's a hard rule on what you should do since there's a lot of factors coming into play. In your specific example if you went R/W and opened up a U/B card in pack 2, I honestly might not considering playing it. The card needs to be really good for the switch to be worth it since you wont be able to splash two other colours normally. Plus, one thing to consider with drafts is that if you spent pack 1 picking R/W, it meant a lot more U/B cards were going left, so the people that will pass to you in pack 2 might be picking those cards more than R/W.

For lands, I normally do 16 or 17 lands depending on the mana cost of my cards, the randomness is part of the game though so sometimes you'll just end up with too much or too little land regardless.