From the comments above, there are still obvious gaps between a traditional stock, and a chassis. The most obvious should be that chassis are used mostly for target style rifles, and traditional stocks on "hunting" rifles. So depending on how you hunt/shoot, the choice should be fairly straightforward.
The HNT26 weighs about 26 ounces or so. This is a massive improvement over previously offered chassis, tipping the scales around 2.5 to 3 pounds, or other hybrid "hunting" stocks, like the McMillan Game Scout, which can also be in that 2.5 to 3 pound range.
As usual, we arrive at the crossroads of: There are many different ways to get something done, pick the best way for you. With regards to this thread, this means that if you don't already shoot a target style rifle, if you are considering that your fingers get cold when they touch cold metal, if you don't like a pistol grip, if you are concerned where your thumb goes, if you believe that carbon fibre is too noisy, or if you limit your shots on game to under ### yards, then an expensive 26 ounce target style stock is not for you. And there is nothing wrong with that, until there is.
The HNT26 just got dragged around on a 4 day moose "hunt". The chassis wasn't cold or noisy, there were no issues with the rifle's safety, and it didn't manage to make coffee in the morning either. What it did do, was provide significant weight savings over the target style stocks that have been previously packed around, give a familiar platform to the user, and also did everything MDT said it would. It's a sold piece of kit. It's also a target rifle style chassis that weighs 26 ounces! Choose accordingly. Just sayin'.
R.