Kuhn 40.1 w spreading

[Plough on]

Can anyone tell me if I want to put some fertiliser on at 20m what settings can you use with s6 discs? As they don't go below 24m on the chart with these s6 discs? 20m only applies to s4 discs, I don't need to go out and buy s4 discs surely!
Thanks

 

[Spear]

You wouldn’t expect discs to throw further than they state so why less?

 

[Plough on]

As it's surely just a case of speed and drop point to throw less slow down the discs u can't speed them up any more to throw them further?

 

[Chae1]

Why did you buy a machine with s6 discs if you want to spread at 20m?

 

[Renaultman]

As it's surely just a case of speed and drop point to throw less slow down the discs u can't speed them up any more to throw them further?

Mathematically, if you get 24m at 540 rpm 450 would give you 20, I would be tempted to do a tray test and have a go.

 

[Plough on]

Why did you buy a machine with s6 discs if you want to spread at 20m?

We were doing 24m kuhn came out and put s6 on as the s4 that had originally with spreader didn't make 24m, but now were at 40m and liquid but want to put some fertiliser on osr to get it going, as been told liquid will burn cotyledons.