I'm definitely still in the camp of thrash it out on an instrument and when ready then record. Mind you Skub and Pompey and others seem to be able to post a completely produced song in the time that it takes me to write down the structure and lyrics so maybe there is something in the process that helps...
Perhaps my question would be "do you want to change the way you write songs?" Is it a positive thing, a negative thing, horses for courses, too early to tell, inevitable these days, it doesn't matter, something else, not a good question..?!