I use Ecooda hornet 8000 and like it. Smooth, rigid, and after few trips it maintain its smoothness and power.
The 8000 is below 600gr, but the line capacity is lower than Shimano's 8000.
Bigger Ecooda hornet (10000, 12000) has more weight, about 720gr. Bigger than these (16000) maybe too heavy for all day popping.
Ratio 5.1 : 1.
Main gear is stainless steel, and the pinion gear is brass. Maybe this is for smoothness.
I also have similiar reel (different brand, but seems made by the same factory) that has stainless main gear and stainless pinion gear, it is not smooth.