I'm actually just around 20 walls from having them all to Lv7 at TH7 but a friend of mine has decided to go for TH8 with just Lv6 walls. He does have all his defences maxed out and his argument is that they both take 2 wallbreakers to get through. That is a very valid point, why not stop at 6 if 7 offers the same protection (especially with the new WB)?

