Right. The fact that you have to carry an extra one on the 53 in order to use this rule makes it harder to use. There are times when carrying three QBs on the 53 is just not practical. They should be allowed to be carried on the PS and be called-up three times as the emergency QB. Like it is right now, after three times the team would have to decide whether to add them permanently to the 53 or add a different QB to the PS. It still wouldn't allow the team to just stash a QB on PS because of the limited call-ups and having to pass them through waivers first. Of course, you could risk a vet since he doesn't have to go through waivers, but he's also free to sign elsewhere.