I'm a plotter that pantses my plot, I suppose. My plot document is actually a very bare bones zeroeth revision, all written in a rush of excitement as ideas spark and bounce off each other, scene ideas sketched out hastily and with much digression and jumping back and forth before being vaguely shuffled into some sort of order.
It's never complete or accurate; it's just a sketch of a map to get me on my way. Once I'm walking the path and writing the first revision proper, all sorts of problems and plot knots will throw themselves up, and I'll have to rework things to get rid of the kinks, but in general I'll have an idea of where I'm going and what scene I should be writing next. I can't start writing without some idea, but I can't finish the idea until I've started writing. I think the problem is a lack of RAM in my brain, and I have to start getting some of it down on paper (screen) to make room for new ideas in the story
If I don't have that, I end up either a) staring at my screen with an unfocused gaze, occasionally switching an adverb in and out and in and out and not really doing anything, killing my momentum and going to bed grumpy because I've been unproductive, or b) waffling without going anywhere, which makes for very boring stories.
As for swooping and bashing... by habit I'm a basher, but I'm trying to be a swooper, because momentum is worth a lot to me, and getting caught up on synonyms to avoid repetition kills that.The problem is that my writing is like cement; at first it's fluid and easy to reshape, but as time and revisions pass, it starts to set and solidify and it becomes harder to make big changes, so I end up stuck with whatever's there and only able to chip away at the edges, refining little cosmetic details. Swooping carries a very real danger of me being stuck with some real garbage in the final draft :/