Let's just compare right quick;
The previous damage "record" from using only 2 large laser family weapons were the 13 damage clan large pulse lasers, for 26 damage, at 12 tons. It's 24 damage now.
2 clan ER large lasers are 8 tons, for 22 damage, still beating out 2 isERLL (18 dmg) by a pretty noticeable margin.
IS large lasers need to be in a 15 ton trio to even compete on "equal" footing, dealing 27 damage. With large pulses you were sitting on 21 tons for 33 damage (30 now because of shortsighted nerfs).
Now, the heavy large laser pair is only 8 tons for 36 damage. Sure, you are saddled with high heat and long cooldowns, but it isn't a significant factor when the role of large lasers has generally been to shoot and fade anyway. Heavy large lasers pair even better than the cLPL does with cERMLs due to the saved tonnage despite the increase in crit space, so they've significantly boosted the potency of clan laser vomit. 2HLL + 4-6 ER medium lasers is the norm, and on mechs that can throw gauss into the mix, and with the Deathstrike being able to swap the ER mediums for heavy mediums with no real issue, things get really out of proportion for how powerful it is.
And, before the duration argument crops up, HLLs deal higher damage/tick than any other laser, so in the same time it takes other lasers to fire off and finish, you've almost always won the trade already. The extra duration is just the leg up if it lands. You're often dealing more than 8 extra damage on the other guy, and as a clan mech, you've probably just fired a crapton of other stuff with it, too.
TL;DR something needs to be done to curb their power. Cooldown is almost meaningless for balancing lasers larger than a small laser, so it needs to be in the raw damage or the duration, or in the range at which they can be used effectively.
Edited by Snazzy Dragon, 27 November 2017 - 09:14 PM.