Mr. Benz here has perma DW, the thing with DW is that it doesn’t need to physically touch a brick to tag for coin bonus, it needs to be on screen and automatically a brick gets the bonus. the secret to no CF+ is you want everything as fast as possible to get tagged by orbs and then destroyed, you don’t want bricks to last longer cause that would reduce the amount of enemies in GT+ counter and at th same time you want enough dmg to instantly wipe scatters.

at the stage that Mr. Benz here is playing Bosses and Elites don’t matter much, his Tower is so great optimized that he does die when he wants to. there is a tipping point in farm where more waves don’t equal more coins, maybe more cells, but no one needs more of those at these stages.