I haven't seen any newer posts on the topic of long-term locker storage in FRA. I'm thinking about all my options during a future trip and am curious about luggage storage in FRA. Here's my situation:

I'm transiting through FRA. 11 days separate my layovers at FRA. The 1st layover is 2 hours whereas the 2nd layover is 21 hours (overnight). What options would you recommend for this long-term storage? Does it matter if the bag is a carry-on or full sized? Also, does the recommendation change if I'm transiting FRA in F?

Does the FRA airport webpage have all my answers?
http://www.frankfurt-airport.com/cms...ge-339764.html

Thanks in advance.