Takes alot of patience, a good desoldering station, and for me lately, a headband magnifying kit. I've found that seeing 5x helps to finesse the boards better. Even then, I'll lift a through hole once in awhile.
As for Clay's guide, I used to do the shotgun approach more often than not. Now, not so much thanks to the sage advice of those professionals such as Hibler and Anthony. Less is more when it comes to board work.