Actually if you ask me it just says the same thing I’ve always used. Eth Thresher + Andy + Treachery. Overall time saves on all the targets that aren’t 1 shot + higher IAS to keep the mobs in hit recovery, + fade proc for better survivability + nearly the same damage as Giant Thresher but can be equipped on an alt’s merc at a lower level.
Fort CA setups are great… at occasionally 1 shotting a mob I’ve probably already 1 shot with an AoE. Most of the time though if 1 or 2 swings kills it from a Fort + CA… then 1 or 2 swings would have also killed it with Treachery + Thresher. Mainly any mob that takes 2,3,4 swings to kill with a CA/Fort setup would STILL die first to the Thresher/Treachery setup due to the higher IAS. At 4 swings It’s Jab/Attack/Attack vs Jab/Attack/Attack/Attack. After you figure in CB Thresher/Treachery is still ahead. It’s also more consistent due to mob block.
Basically every mob that doesn’t get 1 shot by the CA but not the Thresher, the Thresher/Treachery setup is better… and most mobs that DO get 1 shot vt CA/Fort… also get 1 shot by Thresher/Treachery.
If his calculations are right then I think he can’t to the wrong conclusion. There is a large difference in “Target Dummy” tests… and applying it to gameplay. You can’t ignore putting mobs into hit recovery, fade proc, and the fact that the merc will typically either kill the target before it pulls ahead on DPS… or the mob has high enough HP that the Crushing blow is more effective.