When I've got a clear understanding of the design, including where and why tradeoffs were made (ie, we chose X method to optimize CPU time over memory). I enjoy

When I've got a clear understanding of the design, including where and why tradeoffs were made (ie, we chose X method to optimize CPU time over memory). I enjoy just cranking out code, solving small problems, enjoying the fruits of good architectural design and planning. I'm at my least motivated when I'm frustrated, which usually involves pre-code planning phase but feeling like I don't have enough information about the project requirements to choose; not enough time to R&D between the choices also promotes this frustration. I've generally found this form of decision roadblock to be my worst (and maybe only?) writers block.