Once I had learned my main coticule really well and got really consistent results I tried a really well burnished black arkansas. Right after finishing off the coticule to the arkie and do like 100-200 laps. It was like shaving with butter and your whiskers were also made of butter and just butter. Also, being as coti's are non-porous you can try oil on the coticule and just wash it off with soapy water after wards. Or if your really opposed to putting oil on your coti you can get smith's honing solution. Another thing that will take your coti edge to another level is a nice real linen strop.