Tyres in general have a golden rule, heck this rule applies to everything.
Shiney = Slippery
So metal grates, painted marks on the road, etc, all slippery.
You'll notice the tiny little tears are where you are wearing the rubber.
So when you get confident in them you'll see less shiney bits, as you start to lean more.
Tyre wear occurs in different ways depending on the riding.
Light road riding - little tears (these tears are actually from the tyre biting into the asphalt).
Hard road riding - little knurling starts to appear. (You'll see the rubber has been starting to melt and form little bobbles)
Light Track riding, road tyres - as per hard road riding.
Hard track riding, road tyres - again light knurling appearing, also you'll notice a blueish tinge/band appear on the edges of the tyre, this is where heat cycling is taking effect.
Light track, track tyre - as per hard track road tyres, take note of that blue band appear. track tyres also wear in heat cycles, this is the real reason for tyre warmers. 6 heat cycles are the normal before considering disposal or selling for road... (this is monitored with tread wear and each rider makes his own decision.)
Hard track, Track tyre - This is wear they look awesome. tyres ripple and are left with imprints of the tarmac. At this level your running slicks and replacing tyres after 2-3 track days at best, you're eating rubber, and running lower tyre pressures for bigger contact patches, I'm talking 22-24 psi, you can't run this gear on the road. This is dedicated track/race level gear.
A note on heat cycle's.
What is a heat cycle?
Well as rubber is heated and cooled repeatedly, it hardens. To hard and no grip.
If you go out for a session, and come back in without using tyre warmers, consider that one heat cycle. The tyre will now be cold when you next go out, and once it's warmed up your on the next heat cycle.
If you come in, and put the tyre warmers back on, you keep the tyre's hot, so they are still on the same cycle, and they are grippy on that first lap out, even better
.
Tyre tech is moving fast, in a few years this will be out of date and there will be new trends and equipment required.
And that folks is everything I can be bothered to write...
