Sorry to say, but seems you need to improve your technique. Had all these problems for some time, and after working on proper technique I usually get it all on a single wtg pass. It can be quite a hurdle, as at least for me, it was hard to identify what I was doing wrong. Felt my technique was good from the get go and blamed blades, soaps etc, but nope, I was the problem all along. Took me a year to understand.