Got my atoma 400 today. Broke it in on some angle iron and went to work on my phig first to break it in some more, then my j nats.Cuts incredibly fast. Hit my suehiros and choseras. Very fast. My question is is the 1200 useable to lap as well as the 400 grit would leave the edge too rough maybe? i have dmts and the 1200 just kind of gets stuck on the j nats and phig.would the atoma do the same? My jnats i will work with the naguras and tomo to resurface but the 1200 i think might be my next purchase depending on what you guys tellme. Thanks.