This is the best compromise I found on the 10N for this loadout yet. The balance of speed, firepower, agility and amount of ammo fits my play style best. Take a smaller engine, and you start to recgonise quite a difference. Ammo needs to be buffed by using the ammo nodes in the skill tree.
With the ammo buff patch, now with max ammo skills and 3.5 ton of ammo you can fit 490 SRM rounds (previously was 480 with 4 ton of ammo), which means you can fit a faster XL245 engine.
5/5, At the moment is the best and most ton efficient 4xSRM4 IS light you can fit. Fast, annoying and deadly.