For the most part I'm not really using a formula. I'm using stats on hit and blocked shot totals, relative to ice time to determine shot blocking and aggressiveness as accurately as possible. I'm lowering checking power significantly, I think I've got only the most highlight worthy hitters above an 85, none over 88. Endurance is being adjusted based on role to try and get more realistic ice time distribution, but not every top line player is automatically getting high endurance and vice versa. I've actually upped a lot of players shot power while significantly lowering shot accuracy (both wrist/slap). Strength is largely being based on height/weight proportion, with exceptions to players who are noticeably strong. Overall, I've given most players a bump to balance to (in conjunction with lowered checking) reduce the frequency of big hits. For the most part players are being significantly reduced in speed, acceleration and agility but I'm not doing any kind of -10 across the board because then everyone remains the same relative to one another. I want noticeable gaps between players. Right now I have, for example, Clayton Stoner on Anaheim at a 72 speed and Carl Hagelin/Andrew Cogliano at 97. That's a 25 point difference. I'm trying to create those moments of mismatches where speed can kill. If a guy like Hagelin is breaking down the wing on Karlsson in my roster, it's going to be an even race. If he catches a guy like Stoner he should blow by him. If the puck ends up in the corner though, Stoner's balance and strength should hopefully win that battle. Basically I'm going mostly off knowledge of the players, backing it up with stats where quantifiable and reading scouting reports where I'm unsure. Rather than uniformly knock 10 points off of everyone, I'm trying to create rosters where individual strengths shine. A big, strong, slow player with great reach and positioning is going to be slow, strong, high balance, good stick checking, good shot blocking, good defensive awareness. A speedy player like Kreider is going to have incredible speed, a good shot, good size and strength and okay hands. A speedy player like McDavid is going to have blazing speed and dazzling hands but not a big physical game.