Got a Bunch of different sized Nozzles and Hexagon ends

So I picked up a few hexagon end kits that came with .4mm nozzles. I had been using .3mm (not .35mm) and the stock .5mm nozzles for printing. Ive found that the .3mm makes my prints look epic but the prints take longer, obviously. So I snagged another hexagon hot end with a 1.2mm nozzle. I tried a print with this nozzle and while the print finished super fast, the layer thickness was just crazy huge.

Has anyone had any luck with or does anyone have any good tips for using a 1.2mm nozzle?