As someone who is prone to the Leaps and Bounds problem, I have found a good solution. I take the scene that I am really excited about, that I just can't wait to write, and write it first. I tend to like to write chronologically, which helps me avoid pantsing traps, but if I can't wait to write about Scene D, then I go ahead and write Scene D. Then I write Scenes A, B, and C. Then I usually have to rework Scene D a little to make it mesh with the others, but it works out in the end. I also think it is fine to rush along during the first draft, if the author plans to go back and put some more meat on during the revisions. That's just my take though.