Hello
Please change the split operation by letting us to use the existing geometry if we want! It is very annoying to create datum/work planes or to thicken faces as surfaces to get the splitting tool. You are allowed to use faces (planar) to create drafts but to split faces you have to create planes or surfaces when the existing geometry could be used. I think the speed could be increased a little the speed this way and the part will be much stable. Think about a complicated part which need to have 10 (or more) split faces.