Simple Green has always worked well for me. Sometimes I have to run a couple cycles to get everything off, depends on how dirty the razor is and also how good your USC is. In my experience you don't get really good results with one cycle until you're a couple hundred deep on your USC. Something about changing modulation if the frequencies being needed to keep them effective if I recall correctly. Been a minute.
Simple Green has always worked well for me. Sometimes I have to run a couple cycles to get everything off, depends on how dirty the razor is and also how good your USC is. In my experience you don't get really good results with one cycle until you're a couple hundred deep on your USC. Something about changing modulation if the frequencies being needed to keep them effective if I recall correctly. Been a minute.