Test1 
Short vane layed back maximum
Entire vane shifted forward so long and short lead in area is equal (capture quadrants)
Rear curtain blocked in more to curb shower of particles out the back
Spinner rpm 850

Test2
No changes, just reduced spinner rpm to 500 to reduce breakage, this worked
Centre tray has less, width reduction is irrelevant, we were testing if breakage is overloading center trays

Test3
No changes, just increased spinner rpm to 700 to see if breakage returns
Yes, small amoung of breakage returns

Test4
Move chute rearwards 20mm to create a larger gap in the rear throw triangles
To see if centre trays stop overloading
Larger gap is evident in gopro footage
Spinner rpm back to 850
Center tray overloaded again due to breakage, and forward throw is hitting the shrouds