I started out to be a hardcore GT fan also and wanted to do everything in A-spec... but that wasn't the intention of this game... it was intended so you can switch back and forth between A and B spec... because if you really concentrated for 4 hours at a time you could finish endurance races np... but 1. a few people have the time or patients. 2. It's not good for your eyes and health. So B-spec mode is perfectly legit, they made the game this way which was an excellent idea imo... it's far from cheating.....