I bring my Ti coils up to temp (in TC obviously), then give a quick but careful rinse by holding the mod sideways under light running water just enough to get the coils. I get my kanthal coils glowing and do the same thing. After that I throw my whole RDA/ RBA deck in an ultrasonic cleaner (<$30 at Harbor Freight) with hot water and a little dish soap for a couple 3 minute cycles. Give them a good rinse and presto. It works VERY well on gunked up Claptons. Rarely do I need to readjust the coils. If I do, it is more times than not because pulling the old wicks moved them a bit. Trimming one end down before pulling them will help. If you don't have a cleaner, a soft bristled tooth brush will work very well too like the others have said.