Impression Techniques

Open vs. Closed Tray Impressions?

I have been using closed tray impressions since I started restoring dental implants. I have used them for single as well as multiple units. My lab now wants me to use open tray impressions.

Using Triad to Create a Verification Jig?

I was thinking that it would be a good idea to connect all the impression copings with Triad material (gel) before taking the impression, thus creating a verification jig?