Hello. I haven't played BattleTech since my college days and a whole heck of a lot has changed since then. While perusing the selection of items available for purchase on DriveThru-RPG, I noticed that there are several items that seem to duplicate information. If I'm looking at purchasing a sourcebook on House Marik, for instance, would it be a good idea to get the more recent Handbook even if I'm more interested in the Succession Wars era? There's a House Marik sourcebook available that is based in that time period, but the newer book covers all the way up to the Civil War. The periphery seems to have three books for sale, not counting the recently release House Arano (another item of interest btw). It seems I could theoretically use the more recent handbooks for multiple eras, but I could be mistaken. Another reason why I ask is because I didn't see House Davion or Liao available for purchase, so there'd be a bit of a gap in my collection should I go that route. Thanks for any insight you can give me!