So Slush and other relatively fair pools lack blocks
How you can measure this? Pool can be only "fair" or "not fair", there is no intermediate value.
Or "relatively fair" means that it stole money once a month? Lol )
Try to get the point of my post above. Relatively fair in the sense they do not cheat network as probably Antpool does . Stoling money from miners is another story and that is why I have used "relatively"