Regarding the creation of non-magical items, the creation time is funky in that when you roll by week you make the equivalent in silver piece, while if you make the check by day you make the equivalent in copper pieces. However, a copper piece is 1/10th of a silver piece, while a day is 1/7th of a week. Therefore rolling by day you actually lose time.
I also, believe the times are inconsistent compared to what they should be.
A longsword is a 15gp item, 150sp. The average weaponsmiths check we'll assume a +5, taking 10 that's a 15. The DC to make the martial weapon is 15. Therefore 15x15 is 225sp, meaning the longsword takes 2/3rds of a week to make which is basically 5 craft days. Having worked with a smith, that's a bit of an inaccurate time frame.
Has anyone found a simple to use but more accurate crafting system?
I also think if we stick with the normal system, we should redress the rolling by day vs. rolling by week issue.