Defence. Masters, champs.. And high defence..

Ok im th 8 middle-ish defence and upgrades but recently decided to push to masters for gems.. I made it and went down to gold one.. In masters i never really seen any decent defence bases.. But i guess loads of th 10.

what i want to know is. Trophy pushers and top 3s? In high clans pushing for top spots, Why do they move all their defences to the side?? Wall? ( doubled up in corner ) infernos and xbows in corner? Why do this?? Makes the base an easy target?

I was was told the reason for this is because number 1 its to confuse the attackers?? Or number 2 because you cant defend at all?? One guy mentioned on global it could be to stop bots from attacking.

Im in a clan and they are very relaxed.. All adult and have quite afew level 100s but they don't push past crystal..

What do you need for champs?? And why do people have weird defence in champs?? Like i mentioned above.. I just don't get it? I noticed sometimes they don't join wall together too??


Thanks commando.

ps i may have noticed i posted in the wrong section.. Move where needed, cheers