In reply to Nanci Traynor:
Busy is a very subjective state! My experience is that most locations will be relatively quiet with a few parties underway. This is the newest guide as far as I'm aware: https://www.panico.de/alpinkletterfuehrer-allgaeu.html but it is in German so you'll need to spend a little time with Google Translate interpreting the descriptions if you don't speak the language.
It's a beautiful area with many fantastic routes. Despite the routes being bolted, depending on who equipped the route you can expect anything from perfectly bolted routes to bold undertakings with long runouts and a mix of bolts and trad protection. It's important to be aware of the nature of the route before committing because some 6's can be very mentally taxing and hard for the grade, especially in the classics.
Enjoy your trip and feel free to PM with specific questions There are also some other folks living in the area on here so you should get some good answers!