The rapid pace of assigned tasks can often overwhelm - especially when expected to complete an assigned task in the estimated time. Estimates for adding new tools often did not consider problems implementing due to lack of tool support or usage info. I often put in many extra un-billed-for hours in an attempt to learn the new tools in hopes of making the estimations. I did not mind, after all learning is important as demonstrated by some tasks being finished in 1/4th the assigned estimate...