I was looking through the rules and saw that the Subaru Legacy 2.5GT is listed as D Stock and H Stock. While the D stock one is labeled 2005-12, this is not as clear for the H Stock listing. I realize through deductive reasoning that the H Stock one pertains to the non-turbo powertrain but perhaps in a future edit we could clarify the H Stock listing to have a year associated with it?
First, rulebook changes are made through the Solo Events Board (SEB). Any changes you want to suggest should be made to firstname.lastname@example.org
Second, since the proper way (according to the rule book) is to start in Super Stock and work your way down, the listing is fine. If you have a Legacy GT that is 2005-2012, you hit DS and stop. If not, you keep going until you get the listing in HS. About the only improvement that might be suggested is a NOC (not otherwise classified) designation after the HS listing.