.

  Hard for me to imagine  farming without rocks..   

I always get a laugh.... the  West Australian guys come over with their latest seed boot or presswheel design.. first question we ask ..will it handle rocks??.  there doesnt  seem to be much jump clearance, and the attachment looks weak.      

 "Yeah sure we've put them through plenty of rocks, and they lasted fantastically" They will be fine.. We guarantee it"

So you ask  "Do you mean "rock"  or just some stone? "

 And they answer  "Rock" ..... All smiles and   'we want your money" friendly.....

 So you take the guys out to see where you sowed with  what you have been using before.. and they go real quiet, and look at each other  but not at you,  and you notice they  are  kind of a whitish-grey colour. 

A sudden and dramatic loss of confidence....