I think reviewing notes before a session, taking them after a big hand [and paying attention to the name] and then reviewing them when you finish would get you on the right path. Basically just create a routine that forces you to think about their name and what happened, because you need to do something that forces yourself to break the trend of glossing over that detail. I know you said you now have a pre-game and post-game routine, so just incorporate this into that, it shouldnt add too much time and hopefully will help