Like the concept, but I think 3ERML may do better than 1LL at similar ranges. Also: Never run less than 16 armor on your annihilator head. That hitbox is pretty big and being shutdown by dual regular gauss would be embarassing with all the armor quirks
3xERML is debatable because you can't fit additional DHS due to lack of slots, resulting in 3xLL having slightly more sustained DPS at the cost of slightly lower maximum DPS... True about armor head Spoiler
Sustained DPS is mostly covered by the AC10s. I was thinking along the lines of a higher assisted laser alpha and full slot usage, as well as freeing some tons for leg/head armor and more AC10 ammo (so you can put the skills elsewhere)
I had in mind a 10ac and LL build to the gh limit , but it was a bit to heavy and hot, so I dropped one ac and it came out pretty well, also I thought that the cd and ranges synergies well
My 2 cent is to drop LL for AC10: autocannon are arguably the best DPS and best sustained weapons of the games (also, they are pinpoint weapons, which means where it lands it will deal the damage to that component only), plus this chassis has 10% AC10 cooldown, which further enhances DPS. If it feels too hot, drop a LL and keep 2xAC10.