It means more space inbetween the blocks on the tyre, so as the tyre compresses against something, there's more contact with the rest of the tyre. The disadvantage is how time-consuming it is.
Only in BUI comps, IIRC. It's easier, yeah, but it's like a safe option. You don't go to a pub and pull the fat lass, you go to the pub, try to pull the fit lasses, get too wasted to know what you're doing, and then wake up with a lump next to you.
1) You can rest on a bashring 2) Who rests even? Really, if you're going to bash you're doing it wrong. It's like doing a sidehop to pedal... it doesn't really count.
Head on over to 28dayslater. You'll find locations to abandoned places there. You know, you could also use a deserted town... we have one up here near nottingham. That would be pretty striking to have in the background.
I get around with FF fine... for example, if you have a clicky middle wheel - clicking it on a link will open that link in a new tab, but not switch to that tab. Similarly, you can use ctrl-tab and ctrl-shift-tab to cycle through tabs. You can also click tabs to reorder them. Middle-wheel-clicking on the title bar of a tab will also close it. If you double click in the empty space when tabs are open (or use ctrl-t if not) it will open tabs. See, FF is easy to use, and it has adblocker.