I am still torn between CND and NSI l&P. I find I can work better with the NSI and I have had no problems with it, but I find the CND much easier to file, and also I can pick bigger beads up with the CND which is handy for larger nails. CND seems to set much quicker, and I am wondering if as I get better and quicker will this be an advantage as at the moment its a hinderance, I prefer the slower setting. I have been doing nails a couple of years now, but I probably only do 2 sets a week as its not my main job. - I wish it was, I love doing them!