You should get SH III Commander anyway. Using it's crew management option screen I find that I can often "wring" 1 or 2 extra U-boat War Badges or Front Clasps out of BDU for my crew after completing a patrol.
The latest (and last) version can be found here:
http://hosted.filefront.com/Wolfehunter/2238729 . Don't forget to get the small SH III Cmdr 313zip update & the patrol log editor too.