I was surprised to learn that Salt Lake City gets as much snow as it does: 63 inches per annum on average, according to wikipedia. That amount doesn't compare with Buffalo's, of course, and I imagine it doesn't last long on the ground in Salt Lake City, but that amount also is enough for me to recommend
3 sets of tires:
- Blizzak WS-50s for your 16-year-old son to be safest in inclement weather, plus
- "Cheater slicks," nearly treadless, but D.O.T.-legal tires favored by some drag racers (myself included), in order for your 16-year-old son to be the fastest 16-year-old boy around in dry weather, plus
- Something in between, like all-season tires, for in-between weather.
All joking aside, I'd
go with just the Blizzak WS-50s under your circumstances.
I had different major brands of "all-season" tires on my Fiero for years (e.g,, GoodYear, Michelin, etc.) but almost couldn't believe the difference in the car's "snow driveability" when I finally switched to the Blizzak WS-50s I now have on my Fiero.
Also, despite what some do, I use my Blizzak WS-50s
year-round on my daily-driver Fiero.
I'm not knocking what some are doing using
two sets of different-type tires during different times of the year as I've no doubt that "all-season" tires are better for handling in good weather than are snow tires.
Conversely, having used both on my Fiero, I've
also no doubt that good snow tires (like the Blizzak WS-50s) are better for driving in snow than are so-called "all-season" tires. Also, I myself just don't want the expense and time associated with fooling around with two sets of tires, as I readily acknowledge I simply don't have the patience for doing that
Let me play "devil's advocate" here for a moment and assume that year-round usage does indeed make Blizzak WS-50s wear out quicker.
So?
Buying a
second set of tires is
better to keep the
first set of tires last longer? I'm sure that's true, but IMHO, buying
two sets of tires instead of one set at a time
also sounds like something a tire company marketer would very much
like me to do, doesn't it?
Consider also the number of miles likely to be put on your Fiero each year.
I've a fairly short commute, so I don't put many miles on my daily-driver Fiero each year. So what happens if I
do buy two different sets of tires, which then allows me to use
each set of tires longer? Is the
next piece of advice I'll be given that even though both sets of tires still have plenty of tread left, I should discard
both sets of those old, dried-out, now-unsafe tires, and buy even
more new tires instead? (As I'm sure you could tell by now, I don't work for a tire manufacturer.)
By the way, at the outset of this thread, you posted a link to The Tire Rack's survey ratings
only for the Goodyear TripleTred tires. I suggest a side-by-side comparison of those ratings versus The Tire Rack's survey ratings for the Blizzak WS-50s as well.
Perhaps most important of all, a 16-year-old boy and 63 inches of snow without snow tires may be something to think about further before you talk yourself into the GoodYears you've mentioned.
Anyway, those are just my two cents, which hopefully have provided you additional food for thought. Whatever you decide to do, take care, and I wish you the best of good luck with your project and keeping your boy safe.