I tried OTS' Spectrum full face mask over the last few days and am very much impressed. This was by far the easiest FFM to use and by far the most comfortable. The first dive was a bit weird with me getting it adjusted to my face for the first time. It was a bit loose all around but I really noticed it on the top. Easy tugs and I was good to go. This mask seals incredibly well. I'm hard to fit on a mask. Almost every one leaks on me. This was perfect. The only time water got in was when I leaked it in on purpose to clear a bit of fog. There's a little pull tab on the chin, so you can break the seal and get the water out. One of the nice by-products is that you can breathe through your nose. Also, people can hear you a bit more easily. Maybe one day I'll get the electronics package, but this was suweeet. I had an AOW class of five with a few extra that tagged along. One appeared to be missing at depth at the very beginning of the dive, but I thought I had seen her in a blue scarf. I put my reg on her husband's forehead and asked: "Was she wearing a blue scarf?" He shook his head violently "no". Crap! A missing diver and there were multiple groups in the area. The first place to look was the boat, so I popped up. I didn't have to take my mask off to be understood either and the captain responded to my question. Our missing diver called her dive and was safe on the boat, so we went and had fun. Cool. Way cool! The husband was amazed at how clear he could hear me. Many of us know the reg against the forehead trick, but without a mouthpiece in my mouth, it wasn't garbled. Throughout the next few dives, I found simply yelling someone's name was enough to get their attention, even as far as fifteen or twenty feet.