well I dont really drive in the cold here..mostly in the 20s or 30s...pretty warm, dont you agree?

The DW is a dry/wet (a three season or Summer) tire. The DWS is a dry/wet/snow tire, commonly called an All Season tire. All season tires have a rubber compound that is less sensitive to cold temperatures, so as temperatures fall below 40F degrees the DWS provides increasingly superior traction compared to the DW. To make the most of this compound the designers add sipes (cut lines) to the tread to improve snow traction. So the answer is yes, the DWS has a compound and tread pattern that provides superior traction in cold and snow but at some sacrifice in traction and steering response in the other three seasons of the year. If you need to drive a Z in cold and snow the DWS is a smart choice but if you have no need to drive your Z in snow and cold the DW should be your first and only choice.

I bought the DWS because I was told the DWs got hard in cold weather and that could be dangerous..is that true?

I had a one semester photography class in the early-mid 70's when I was considering going back to school to get a teaching credential in industrial arts (my BA was in history), that's my story and I'm sticking to it.

I was looking at your photos..obviously you have an interest in photography...some of the shots some people post are a hoot!
I havent done much shooting in a while,..,.mostly grandkids...but I can tell you are a lot better than the average

It is widely known that I am knowledgeable. I also have three garden fountains, so there you go.

Money, desire and hormones are a danger to anyones bank account.

Talking about the money they spend on cars..my grandson is the same way with video systems..he is only 17 but every penny he makes goes to video gaming..
My son got a credit card at 16 and ran up $20,000 + but remarkably paid it off.,.he now owns his own house and is manager at Staples..things do work out..in most cases..

Geeze man you are a regular "Fountain of Facts!" PS does the term "fountain of facts" remind you of an old TV show in which one contestant was termed "Fountain of Facts?" It was quite a show..until they found it was rigged...remember that

The wiggle you mentioned will probably diminish or go away altogether after the tires are heat cycled a dozen or so times. The rubber in a new tire is still quite chemically active, your new tires won't really show up for work until you've driven them at least 20-30 miles several times.

You've just discovered why most sports cars come with summer tires. The larger tread blocks reduce tread squirm allowing the tire to be more "precise". All season tires have a rubber compound that is more tolerant of freezing temperatures and a tread pattern that features many sipes (cut lines) for improved snow traction. The side effect is a slight loss of handling precision. As the tread wears the shorter stiffer tread will provide sharper more precise steering.

I loath all season tires and rarely buy them. Of course we don't have snow, ya gotta do what ya gotta do.

I just got the Continental Extreme Contact DWS .. here are my first impressions..

I drove the car on dry pavement on both highways and secondary roads....I dont notice a great deal of noise reduction..I noticed a lot of noise on wet pavement with the old tires so that test with the new ones remains to be done.

I do notice the ride is a bit softer and the control is a bit looser than the original stocks. But they are more than adequate for reasonable people in real life situations not on the racetrack

I have a feeling these are going to be better on wet pavement than the old stock ones and certainly better in snow. ( i never drive in snow ..to many rocks and sand and salt.. i am sure you have the same problem )

Hope this helps..