the Draft Dominator is an essential draft tool.
I feel embarrassed since I'm a regular here and I"m asking this, but what exactly is the Draft Dominator?
Draft Dominator (see link below)

raft Dominator is a software program that takes 1) your league's scoring rules and structure, 2) David Dodd's projections, and 3) VBD (using whatever baseline you set), and determines the "value" of players in a draft, based on your league's scoring rules.
Before we move on, this by itself is hugely valuable. Applying your league's scoring rules to a set of projections is difficult and very meaningful. Applying VBD (properly instituted) is a key insight that is done automatically for you. The format is very user-friendly, and you can run mock drafts very easily, either using VBD or (more commonly) average draft values that are downloaded into the software weekly until the season starts. So you get a reasonably good sense at how people would draft, and what choices will be available to you.
Now, using the output, there are issues. One - David Dodds might be wrong about a) a given player's projections or b) the relative ranking of one position player vs. another. That's why I tend to see where a given position player (say, RB#12) deserves to be taken, using league scoring VBD, and then mentally slot who I believe is RB#12, among a group of three or four candidates. We all do this with cheatsheets. Two - your league scoring rules applied to projections and the actual scoring that would be produced by those projections are slightly different. To give one example, RBs in my league get no points for yards until 75 (2 pts), 100 (4 pts), etc. There is no way to replicate this in the scoring setup. You can get fairly close, but it's always going to be giving me some points for sub-75 yard days. To get around this, I prepare a separate, hand made excel spreadsheet, using the same VBD baselines, that uses our league's scoring history for RB #1, #2, QB #7, etc. Then (for lack of anything better) I use Dodd's ranked-players to fill those slots (though, if I have time, I reorder them a bit), then VBD that, then I determine when RB#3 or QB#7 has been historical drafted in my league (those are my average draft positions). I have that peice of paper with me at the draft, which I scratch off, as well as Draft Dominator. Draft Dominator is more dynamic than my paper, while my paper is more customized to my league that Draft Dominator.
I believe it is possible to populate Draft Dominator with your league's scoring instead of projections, but it appears to be difficult and you lose a lot of information, so I have just done this the easy way.
Now, take a look at this (don't know how it differs from the paid version), and imagine that once you've drafted, you can import the draft results (by team) into Lineup Dominator, and then each week (from week 1 you can see weeks 1-15) and rolling through the weeks, you'll be able to see your expected scoring (using your league rules) for any given week, what your record is "expected" to be, what players are available that might be better than yours - forward the rest of the season, or for given weak weeks. And using strength of schedule as a factor in the expected scoring for the week.
Imagine thinking about doing a trade; putting it into your lineup; and then being able to say "this trade seems to make sense; and actually improves my scoring for the year; however, it weakens me in weeks 16 and 17 to below an acceptable level. However, if I trade so-and-so (who's weak those weeks) for another player, and then pick up such-and-such, whose strong those weeks, then that trade is a home run." That's what you can do with lineup dominator. Of course, things may change afterwards, but your gut - and this kind of information - works wonders. And your gut will not tell you, at a glance, what effect a trade will have on you in some out week. You can even see that it strengthens you in your weakest week, or a week that you play a division opponent.
http://footballguys.com/download2.htm
Now, their predictions will be wrong about given players' performances (though, no more than a well-informed fantasy player, and much less than a non-expert like me), but the methodology is very well founded, and so user-friendly that you only have to download updates to implement for each week. That's why we all beg for updates as soon as possible - our brains can't systematically apply all of these variables (esp. strength of schedule) on the fly.
That's why I have always said, and say now, that I am happy to pay double the cost if those funds are necessary to improve the product here, even by 20-30%. "Faster" being the number one way things could be improved. Not that they aren't impressively fast now. Second best thing to do - make it possible to use a) consensus projections or b) select among several sets of projections. Third - allow more peculiar scoring rules to be applied (which requires weekly projections at the beginning of the season - a tall order). Fourth - there is no fourth.