How to skip repeated failed attempts?

[Raccoon]

As a simple example I'm currently running something like 

Code:

D:\hashcat-6.2.5>.\hashcat.exe -m 14800 myhash.txt --session foo -a 3 ?l

but for my next run I do something with 

Code:

?h

but I see re-attempts at [a-z]. I remember reading somewhere that hashcat can be configured to remember prev attempts so it can skip over them but after looking all over the wiki the closest I found was the potfile which only stores solved hashes it seems