Atoma 400 lapping leaving scratch marks on stone

[Dafonz6987]

So I have been lapping my shapton pro series stones with an atoma 400 and I've noticed when I get up to the higher grits it leaves tiny little lines when I push my razor across the stone... That's the only time I can see them is when the surface water is being pushed and what's left behind is in the thin scratches... They are pretty small and sometimes you need an angle to see them... So my worry is that it's effecting my honing... Just to mention too I only use the weight of he atoma and no pressure to lap my stones... Also I do this under running water... Should I purchase the atoma 1200 for my finer stones?