Okay, I'm due for a new rear tyre soon. I've heard that new tyres are slippery, and I should therefore be careful, and "wear in" the tyre first. A few questions: 1) How long does it take to wear in? Like, are we talking a ride around the block? A week of riding? 2) How do you wear in the edges (if the tyre is slippery, surely you don't want to go around corners fast? Do you just do lots of flip flops like when you're warming a tyre up? 3) Am I making too big a deal about this?