You are correct that the modification is linear based on the degree of injury; however, it's not as extreme as your example. Each injury will compound with a maximum 25% reduction - so if your WR has a 90 on his hand injury, he will have about a 2% reduction in his pass catching skill. If he has 50 on both his hand and his arm, his pass catching skill will reduce by 14% for his hand injury (i.e. 86%) and then again 14% (or, another 86% off from the first 86%, taking it to 73%) so his 80 skill will actually operate as a 59.

JDB, I'm trying to parse this statement. Are you saying that any injury -- no matter how severe -- that doesn't result in "Out" status will only degrade a player's ability in the relevant area by a maximum of 25%?