Berserker gives no such signal. Berserker only means you have Berserker armor. If you're bad, it'll be obvious in your play. If you're good, it'll be less apparent, but you probably won't be sleeping too often (unless you're bringing glass to a stone fight, but that's a different topic). Marauders does get you much closer to the crit cap where anything beyond is wasted. However looking at the stats as a whole, there is a significant increase in health for a small decrease in damage. Consider adding Beryls or Valkyrie pieces to offset any precision overloading (and take common buffs like banners into consideration when you do it). A mix of Berserker, Marauder, and Valkyrie pieces can grant a lot more health for a small damage tradeoff, which may be enough to put out more actual dps compared to straight berserker. The total effect and value will depend on personal skill.