WD Music WD500PP 500K Pot Push Pull

This pot is A500K, which is not stated in the description. There are two things I don't like about it:1) It is NOT smooth when turning or pulling up. It's like scraping(is this the right word?) a little bit.2) It is wider than most of the pots so it didn't fit in my guitar.I did not get to actually use this in my guitar because of the stated reason but I guess it's just a normal working pot other than the issues I mentioned.I have also gotten this one and this is very soft and smooth when turning or pulling up. Kmise A0379 A500k Push Pull Guitar Control Pot Potentiometer Chrome Kmise A0379 A500k Push Pull Guitar Control Pot Potentiometer Chrome