I saw V7 had an Ionbond Titanium carrier, same weight as the Cryptic I had been previously eyeing at 5.7 oz. Also compatible with a forward assist so I went ahead and got it. I also got an SLR Sentry 7 adjustable gas block so I can tune as necessary. I thought about getting the Ti version, but it was 60$ more for .5 oz of weight savings, so, no thanks.
I figure I'll try the V7 and if I like it once I get it dialed in then awesome, and the Lantac will be held in reserve for a future build. If not, I'll pull the Lantac into service.
I got the V7 carrier today. Yup. It's light. It's also very clean, cleaner than the Lantac. The laser engraving is also nice. I must say, thus far I've been very impressed with all the V7 components I've handled, and I've handled a few by now.
Just need the gas block to show up and the upper will be off to Rainier for assembly!