I tried asking Kwikset about this but have not received any response. On their website they promote "Key Control - the smart alternative to master keying". Now, I like master keys but re-keying between tenants can be frustrating. So I took a look at what they are promoting. They (Kwikset) have a deadbolt with 2 re-keyable keyways. One for the tenant's key and one for the master key. My question has to do with the door knob & latch (you know, that thing other than the deadbolt). As there doesn't seem to be any door knob/latch that would take the master key, are they thinking I'll install non-lockable door knobs so the only thing locking the door is the deadbolt? Do you think tenants would be happy with door knobs/latches that are not lockable? It definitely would make it harder to lock themselves out.
Every one of our units has a doorknob and deadbolt. We stopped using locking knobs due to too many lock outs. No way to lock yourself out with just a deadbolt. Haven't had a single comment or complaint about it.
We also use the same set up on every door. We keep an extra 5 deadbolts ready to go. All we do is swap an old one out and replace it. The old one goes to the end of the circulation line to be used again at a later date. No re-keying is necessary.