Logbooks in flight bags?
There is no way I would carry my logbook in my flight bag, or even in my car. Several years ago my car was stolen from a mall parking lot after I had been at the airport all day. Goodbye headsets (replaceable), goodbye logbook (not replaceable). At the time it wasn't that such a big deal - I had just gotten my instrument ticket and had a copy of the rating application with the times on it, so it was easy enough to recreate. The only thing I lost was the memories of and remarks applicable to specific flights.
However, last year one of my fellow pilots (typed on DC3 and DA20) lost his logbook when his car was stolen. A few thousand hours of time will be much harder to recreate, not to mention all the personal notes in the remarks column.
No way, under any circumstances will I ever carry my logbook with me unless I am taking it to obtain a specific endorsement or sign-off. It stays put away at home, and every month or so I copy the info from my little red pocket-sized logbook into the big Jepp Pro Pilot book.
However, if you're gonna carry it, I hope it fits in your new bag.