Could that 'oily' feeling be due to the high SF?...
That was the conclusion I came to over time as I tested the salt bar batch I made. Not enough fat to feel greasy or oily on the skin, but enough that it felt sticky after I toweled off. This skin-feel was different than soap scum stickiness.
@CecileBC -- the others are giving good advice -- don't get impatient; let this type of soap have a good, long cure. The batch I made was quite harsh for many months. It took at least a year of curing for the soap to be mild enough for me.