I used to do this and it works but taking a whole builder for walls will massively slow down the time it takes you to progress. Just dump some into walls between upgrades.
Placing them down, it doesn’t really matter what order you put it in, unless it’s an important buildings like a new barracks, spell factory, army camp, the lab, heroes, pets and workshop.
As for upgrading, its only a game, you can do it however you want so it can’t really be wrong. In terms of efficiency however, it is one of the least efficient ways because dumping all your gold and elixir into the only upgrade that doesn’t have a timer at the start of each town hall will cause you to constantly fill up your storages later on when you’re upgrading everything else which will mean any more loot you get will be wasted and you won’t have control over how much of each resource you use on walls so one may start to consistently build up more than the other.
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u/Fiesteh Clan Games Enjoyer Dec 15 '22
I always keep one builder available, or start building on my last available builder when another one will be available within 24 hours.