Hiya Gulley Hunter,
I also had a hard time learning to cast my first Shimano 50. I tried all sorts of sinker weights and even tried to change my casting action for the reel.
One snapped rod, plenty crows nests and countless roasted fingers I have found balance! LoL
I simply switched the length of my rod from a 400 to a 350 and went from a 9oz to a 10oz.
I fish a stiff 3 pcs spiggot joined Purglas /6 350 and cast a typical South African cast straight over my shoulder, but with a lob action.
Put my 50 on a 400 lighter rod when I load the rod more and its over wind shot for shot. Kopstamp uses the same rod and casts a 8 or 9oz.
Its all about getting the combination between your action, rod action, reel, line and sinker oz right...balance!
You are more than welcome to pop around and have a feel and cast with my rods?