I am using Onymyrthe, although I understand it's no longer available. I use a crystal glass nail file, Micro-mesh pads and sandpaper. The last thing I do is polish them with commercial plastic-backed diamond grit polishing sheets for non-metals. I get it from a hardware supplier. It says that it's 2200 grit, but it's MUCH finer than the highest grit Micro-mesh pad. It's a little expensive....one 9" X 11" sheet is about $40.....but I cut it into small pieces, and it will last a very long time. It's plastic-backed, with a shiny side and a dull side....that's the abrasive side.....and you can hardly tell the difference in the feel of the two sides. It really puts a glass-like finish on my nails.
2017 Jason Wolverton spruce/maple, 640, "Luz Blanca"
2016 Kenny Hill New World Estudio 640, cedar
2015 Kenny Hill Performance 640, C/IR
2017 Kenny Hill Player Cutaway, 640, Sp