Wasn't in last year but I see some differences from when I played "regular" Yahoo league a couple of years ago.
Roster to be 22 players?
3 IR slots? Have to be listed as IR by Yahoo to be put on IR?
Guys showing C,W can be slotted in the lineup at either position?
If Team A cuts a guy, he is immediately eligible to be picked up by anyone?
Commissioner is sole decider if a trade flies?
Here are settings in the Grinder League to compare.
Trade Reject Time: 2 days vs 0 in Prospect.
Waiver Time: 2 days vs 0 in Prospect.
Can't Cut List Provider: Yahoo! Sports vs no list/restrictions in Prospect
Trade Review: League Votes vs Commissioner decides in Prospect
Roster Positions: Grinder shows 3 C, and 5 W, vs 4 C and 6 W in Prospect.
I thought that the standard Yahoo league allowed players to play any position they were listed as at start of season. C/W or W/D for example.
Grinder also has 3 IR spots, and player has to be listed in Yahoo to be eligible.