I'm a big user of the Trunked Discovery on the local DOD system in my area which is huge. From my location I am able to pull at least 6 to 8 sites from my home location. Each site is basically a base or an extension of the base. One of the limitations I see with Trunked Discovery Mode (TDM) is I'm limited to one site at a time. The other limitation I have is I can only record up to 180sec of audio. Sometimes the users are just chatting away and not providing detailed information for me to ID the talkgroup. Allowing for at least 5 or even 10 minutes of extra audio allows me to be able to better identify the channel/TG usage. I use to use my 996XT with IDTracker and it would be able to record what ever I had configured and for as long as I wanted resulting in spot-on ID's. Now I use the HP-1 which frees up my computer. Again this is just a suggestion.