We recommend the 1000/4000 stone for straight razor users who progressively hone from the 4000 grit side and then go to an 8000 belgian yellow coticule. The 1000 grit side will give the capability of reviving a really dull or abused razor back to a reasonable edge. I strongly recommend lapping the stone flat and chamfering the shoulders prior to use. If you don’t want to do this, I will do it for you prior to shipping for $5 per surface (two surfaces). See our Stone Lapping Service page.