Critical strikes make Arms' world go round — they activate Wrecking Crew, Incite and Battle Trance Mastery; are rewarded by Impale; and drive Deep Wounds. Adjustments to Level 85 stats mean its value levels off at even greater amounts. The math is inarguable: Mastery, even after 4.1, is never worth more than Crit.

1) You should NEVER be running Arms with Incite. HS is not a good button to hit unless Deadly Calm or Battle Trance are up, or if you need to dump Rage (which doesn't happen often) and even then I'd rather hit Slam as it does significantly more DPR and DPS.

2) You need less crit if you are doing what you are supposed to be doing in the first place and you are specced properly. Use Charge when you switch targets and learn to hop back and Charge on static fights. Arms is for SKILLED players that utilize all their toolkit, if you can't do simple things, go play Fury.

3) Impale only works on MS, Slam, and OP. Since ALL of these strikes have an increased chance to crit through Talents or Glyphs it reduces the amount of crit needed to keep Deep Wounds rolling and Blood Frenzy and Wrecking Crew up.

I think you need to take another look at how you play the class before you criticize others that may know what they are talking about.