Been using the izorline XXX smoke 2lb. test for ~5 years now. Also use 2lb. Hybrid Yo Zuri green - good for brush & is visible in low light. Think the breaking point is around 6lbs. Casts well and low memory.
I like the XXX for the smaller jigs and a 3000 yard spool is super cheap.
Both copolymers are great lines for BG fishing in SoCal.
Back in the day - Tectan was the line (2lb was .0035) - problem was the sun would eat it up. I think they stopped making 2lb. test.

