Be cautious with the initial events setting. If you leave it at false, you run the risk of not receiving alarms in certain situations. One of those situations is if your tag has either never changed before, which is definitely possible with digital tags. The other is if the tag is not currently in alarm, then the device goes into a comm failure which makes the tag go into a quality other than good, and while it is down, goes into alarm, then comms comes back up. In that scenario you wont receive a alarm notification either.
The alternative is if you set the notify initial events to true, then if you restart the gateway all of the existing alarms get re-sent. So kind of a catch 22 but I would prefer to get nuisance alarms on a restart than miss potentially critical alarms.