You can confirm this by viewing the mapping tab in SD for the Hat -> Pedal CC Control. At least not the way it does in stand alone mode. You can go back to the default setting SD and open and close the pedal, but after some testing I determined SD is not receiving the CC4 messages from the Roland. When I save the user preset and load SD as a VST in reason the pedal isn't responsive. I can set up the hat pedal just fine when using SD stand alone. I have a Roland TD-1K kit going into Reason 9.5 and Superior drummer 2.0. Here are my findings incase they are helpful to anyone on the board. I saw your post from a few months ago and though I'd respond since I've been agonizing over the same problem. the record midi data from the TD9 playsback the Hi hat correctly? so that rules out an issue with TD9

When SD2 is inside Reason, the midi data is going into reason first and then past into SD2, at this point the midi data seem to be corrupted! What do i mean?.will with no host DAW in the way of the midi data coming from the TD9, superior Drummer responds correctly to hi hat, Ok there seems to be a difference between midi data being played into SD2 from Roland TD9 and recorded midi data from the TD9, I can only assume that the issue is with Reason. Hello i have superior drummer 2 (SD2) ,when it's in stand alone mode i can setup the SD2 hi hat to respond to my Roland TD9 V kit correctly using the roland tab in midi settings, i saved this setting, i then open superior drummer inside Reason, and load my saved setting, but when i play the Roland TD9 hi hat it now stays open, and even when i make changes inside SD2 to the HH curve response, it makes no difference!

How to launch superior drummer 2.0