[frizzen]

Love how you accomplished the rigging, that's really looking great! Sharp rims.
Wait, 1mm fishing line isn't good for climbing? You serious?

Drag buckets are kinda weird to setup, or tune for the dirt conditions. Plus most of the guys who *really knew* it are either gone or never had much use for a computer. Some of the old manuals help give the basics.

Spreader bar should be wide enough not to foul the bucket on chains, but going too wide with those chains is just more drag / parts wear while in a cut.

Crowd line/chains higher from cutting edge makes the teeth want to dig in deeper, until you go too high above bucket CG and it pulls the back of bucket up & over. Too low attachment skims over dirt and can't start to dig. At-grade and Below-grade dig a little differently

Hoist chains lower than CG help the bucket instability so it can dump easier or have more sitback for carrying without spilling. Or moving hoist chains farther from cutting edge can do that without drilling more holes in your bucket

Clamshell is going to be something you'll want to be able to run a channel-mix with.