Dunno if the rake on the rudder actually makes much difference, at the low speed required to stall, the rudder is probably almost unresponsive, so at the point of spin entry (You have to stall before you can spin) the slow speed isn't going to make the rake important. At high speed with full rudder quickly applied there is a little tail down 'kick' before the roll and pitch occur, but really it is difficult to detect any other effect at any other speed. You can simply ignore anything other than the yaw, so far as the sim programme is concerned. Certainly, so far as I can tell, the supposed 'benefits' of the rudder sweep are practically undetectable.
Evan.